Home / 125,321.59-172,952.94-71,605.45

Finding the Fourth Proportional to 125,321.59, 172,952.94 and 71,605.45

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Solution

The fourth proportional to 125,321.59, 172,952.94 and 71,605.45 is: 98,820.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,321.59 : 172,952.94 = 71,605.45 : x
  2. Step 2: Convert to fraction form
    125,321.59/172,952.94 = 71,605.45/x
  3. Step 3: Cross multiply
    125,321.59x = 172,952.94 × 71,605.45
  4. Step 4: Simplify right side
    125,321.59x = 12,384,373,097.52
  5. Step 5: Solve for x
    x = 12,384,373,097.52/125,321.59
  6. Step 6: Final answer
    x = 98,820.75

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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.