Home / 136,123.92-187,851.18-75,693.90

Finding the Fourth Proportional to 136,123.92, 187,851.18 and 75,693.90

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Solution

The fourth proportional to 136,123.92, 187,851.18 and 75,693.90 is: 104,457.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,123.92 : 187,851.18 = 75,693.90 : x
  2. Step 2: Convert to fraction form
    136,123.92/187,851.18 = 75,693.90/x
  3. Step 3: Cross multiply
    136,123.92x = 187,851.18 × 75,693.90
  4. Step 4: Simplify right side
    136,123.92x = 14,219,188,433.80
  5. Step 5: Solve for x
    x = 14,219,188,433.80/136,123.92
  6. Step 6: Final answer
    x = 104,457.68

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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.