Home / 117,136.28-161,637.66-69,381.92

Finding the Fourth Proportional to 117,136.28, 161,637.66 and 69,381.92

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Solution

The fourth proportional to 117,136.28, 161,637.66 and 69,381.92 is: 95,740.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,136.28 : 161,637.66 = 69,381.92 : x
  2. Step 2: Convert to fraction form
    117,136.28/161,637.66 = 69,381.92/x
  3. Step 3: Cross multiply
    117,136.28x = 161,637.66 × 69,381.92
  4. Step 4: Simplify right side
    117,136.28x = 11,214,731,195.11
  5. Step 5: Solve for x
    x = 11,214,731,195.11/117,136.28
  6. Step 6: Final answer
    x = 95,740.89

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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.