Home / 121,195.73-181,678.57-42,288.77

Finding the Fourth Proportional to 121,195.73, 181,678.57 and 42,288.77

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Solution

The fourth proportional to 121,195.73, 181,678.57 and 42,288.77 is: 63,393.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,195.73 : 181,678.57 = 42,288.77 : x
  2. Step 2: Convert to fraction form
    121,195.73/181,678.57 = 42,288.77/x
  3. Step 3: Cross multiply
    121,195.73x = 181,678.57 × 42,288.77
  4. Step 4: Simplify right side
    121,195.73x = 7,682,962,246.54
  5. Step 5: Solve for x
    x = 7,682,962,246.54/121,195.73
  6. Step 6: Final answer
    x = 63,393.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.