Home / 138,769.80-208,005.42-59,921.16

Finding the Fourth Proportional to 138,769.80, 208,005.42 and 59,921.16

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Solution

The fourth proportional to 138,769.80, 208,005.42 and 59,921.16 is: 89,817.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,769.80 : 208,005.42 = 59,921.16 : x
  2. Step 2: Convert to fraction form
    138,769.80/208,005.42 = 59,921.16/x
  3. Step 3: Cross multiply
    138,769.80x = 208,005.42 × 59,921.16
  4. Step 4: Simplify right side
    138,769.80x = 12,463,926,052.69
  5. Step 5: Solve for x
    x = 12,463,926,052.69/138,769.80
  6. Step 6: Final answer
    x = 89,817.28

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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.