Home / 131,660.19-181,686.56-75,089.79

Finding the Fourth Proportional to 131,660.19, 181,686.56 and 75,089.79

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Solution

The fourth proportional to 131,660.19, 181,686.56 and 75,089.79 is: 103,621.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,660.19 : 181,686.56 = 75,089.79 : x
  2. Step 2: Convert to fraction form
    131,660.19/181,686.56 = 75,089.79/x
  3. Step 3: Cross multiply
    131,660.19x = 181,686.56 × 75,089.79
  4. Step 4: Simplify right side
    131,660.19x = 13,642,805,636.22
  5. Step 5: Solve for x
    x = 13,642,805,636.22/131,660.19
  6. Step 6: Final answer
    x = 103,621.34

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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.