Home / 135,979.47-187,646.31-75,553.86

Finding the Fourth Proportional to 135,979.47, 187,646.31 and 75,553.86

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Solution

The fourth proportional to 135,979.47, 187,646.31 and 75,553.86 is: 104,261.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,979.47 : 187,646.31 = 75,553.86 : x
  2. Step 2: Convert to fraction form
    135,979.47/187,646.31 = 75,553.86/x
  3. Step 3: Cross multiply
    135,979.47x = 187,646.31 × 75,553.86
  4. Step 4: Simplify right side
    135,979.47x = 14,177,403,035.26
  5. Step 5: Solve for x
    x = 14,177,403,035.26/135,979.47
  6. Step 6: Final answer
    x = 104,261.35

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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.