Home / 128,161,249.44-176,858,870.34-75,237,106.07

Finding the Fourth Proportional to 128,161,249.44, 176,858,870.34 and 75,237,106.07

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Solution

The fourth proportional to 128,161,249.44, 176,858,870.34 and 75,237,106.07 is: 103,825,061.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,161,249.44 : 176,858,870.34 = 75,237,106.07 : x
  2. Step 2: Convert to fraction form
    128,161,249.44/176,858,870.34 = 75,237,106.07/x
  3. Step 3: Cross multiply
    128,161,249.44x = 176,858,870.34 × 75,237,106.07
  4. Step 4: Simplify right side
    128,161,249.44x = 13,306,349,586,306,662
  5. Step 5: Solve for x
    x = 13,306,349,586,306,662/128,161,249.44
  6. Step 6: Final answer
    x = 103,825,061.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.