Home / 119,221.48-178,737.18-77,144.68

Finding the Fourth Proportional to 119,221.48, 178,737.18 and 77,144.68

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Solution

The fourth proportional to 119,221.48, 178,737.18 and 77,144.68 is: 115,655.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,221.48 : 178,737.18 = 77,144.68 : x
  2. Step 2: Convert to fraction form
    119,221.48/178,737.18 = 77,144.68/x
  3. Step 3: Cross multiply
    119,221.48x = 178,737.18 × 77,144.68
  4. Step 4: Simplify right side
    119,221.48x = 13,788,622,555.20
  5. Step 5: Solve for x
    x = 13,788,622,555.20/119,221.48
  6. Step 6: Final answer
    x = 115,655.52

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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.