Home / 131,403.66-181,340.55-74,830.38

Finding the Fourth Proportional to 131,403.66, 181,340.55 and 74,830.38

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Solution

The fourth proportional to 131,403.66, 181,340.55 and 74,830.38 is: 103,267.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,403.66 : 181,340.55 = 74,830.38 : x
  2. Step 2: Convert to fraction form
    131,403.66/181,340.55 = 74,830.38/x
  3. Step 3: Cross multiply
    131,403.66x = 181,340.55 × 74,830.38
  4. Step 4: Simplify right side
    131,403.66x = 13,569,782,265.91
  5. Step 5: Solve for x
    x = 13,569,782,265.91/131,403.66
  6. Step 6: Final answer
    x = 103,267.92

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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.