Home / 135,916.53-187,562.43-75,484.86

Finding the Fourth Proportional to 135,916.53, 187,562.43 and 75,484.86

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Solution

The fourth proportional to 135,916.53, 187,562.43 and 75,484.86 is: 104,167.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,916.53 : 187,562.43 = 75,484.86 : x
  2. Step 2: Convert to fraction form
    135,916.53/187,562.43 = 75,484.86/x
  3. Step 3: Cross multiply
    135,916.53x = 187,562.43 × 75,484.86
  4. Step 4: Simplify right side
    135,916.53x = 14,158,123,769.81
  5. Step 5: Solve for x
    x = 14,158,123,769.81/135,916.53
  6. Step 6: Final answer
    x = 104,167.78

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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.