Home / 115,185.13-172,553.52-65,113.76

Finding the Fourth Proportional to 115,185.13, 172,553.52 and 65,113.76

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Solution

The fourth proportional to 115,185.13, 172,553.52 and 65,113.76 is: 97,543.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,185.13 : 172,553.52 = 65,113.76 : x
  2. Step 2: Convert to fraction form
    115,185.13/172,553.52 = 65,113.76/x
  3. Step 3: Cross multiply
    115,185.13x = 172,553.52 × 65,113.76
  4. Step 4: Simplify right side
    115,185.13x = 11,235,608,919.82
  5. Step 5: Solve for x
    x = 11,235,608,919.82/115,185.13
  6. Step 6: Final answer
    x = 97,543.92

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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.