Home / 131,403.60-181,355.76-74,820.24

Finding the Fourth Proportional to 131,403.60, 181,355.76 and 74,820.24

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Solution

The fourth proportional to 131,403.60, 181,355.76 and 74,820.24 is: 103,262.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,403.60 : 181,355.76 = 74,820.24 : x
  2. Step 2: Convert to fraction form
    131,403.60/181,355.76 = 74,820.24/x
  3. Step 3: Cross multiply
    131,403.60x = 181,355.76 × 74,820.24
  4. Step 4: Simplify right side
    131,403.60x = 13,569,081,488.58
  5. Step 5: Solve for x
    x = 13,569,081,488.58/131,403.60
  6. Step 6: Final answer
    x = 103,262.63

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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.