Home / 137,160.14-205,553.40-77,217.20

Finding the Fourth Proportional to 137,160.14, 205,553.40 and 77,217.20

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Solution

The fourth proportional to 137,160.14, 205,553.40 and 77,217.20 is: 115,720.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,160.14 : 205,553.40 = 77,217.20 : x
  2. Step 2: Convert to fraction form
    137,160.14/205,553.40 = 77,217.20/x
  3. Step 3: Cross multiply
    137,160.14x = 205,553.40 × 77,217.20
  4. Step 4: Simplify right side
    137,160.14x = 15,872,259,259.73
  5. Step 5: Solve for x
    x = 15,872,259,259.73/137,160.14
  6. Step 6: Final answer
    x = 115,720.64

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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.