Home / 121,607.76-182,429.92-42,708.08

Finding the Fourth Proportional to 121,607.76, 182,429.92 and 42,708.08

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Solution

The fourth proportional to 121,607.76, 182,429.92 and 42,708.08 is: 64,068.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,607.76 : 182,429.92 = 42,708.08 : x
  2. Step 2: Convert to fraction form
    121,607.76/182,429.92 = 42,708.08/x
  3. Step 3: Cross multiply
    121,607.76x = 182,429.92 × 42,708.08
  4. Step 4: Simplify right side
    121,607.76x = 7,791,231,617.75
  5. Step 5: Solve for x
    x = 7,791,231,617.75/121,607.76
  6. Step 6: Final answer
    x = 64,068.54

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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.