Home / 131,641.85-181,665.79-74,293.40

Finding the Fourth Proportional to 131,641.85, 181,665.79 and 74,293.40

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Solution

The fourth proportional to 131,641.85, 181,665.79 and 74,293.40 is: 102,524.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,641.85 : 181,665.79 = 74,293.40 : x
  2. Step 2: Convert to fraction form
    131,641.85/181,665.79 = 74,293.40/x
  3. Step 3: Cross multiply
    131,641.85x = 181,665.79 × 74,293.40
  4. Step 4: Simplify right side
    131,641.85x = 13,496,569,471.22
  5. Step 5: Solve for x
    x = 13,496,569,471.22/131,641.85
  6. Step 6: Final answer
    x = 102,524.91

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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.