Home / 172,081.17-237,488.94-99,487.20

Finding the Fourth Proportional to 172,081.17, 237,488.94 and 99,487.20

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Solution

The fourth proportional to 172,081.17, 237,488.94 and 99,487.20 is: 137,302.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,081.17 : 237,488.94 = 99,487.20 : x
  2. Step 2: Convert to fraction form
    172,081.17/237,488.94 = 99,487.20/x
  3. Step 3: Cross multiply
    172,081.17x = 237,488.94 × 99,487.20
  4. Step 4: Simplify right side
    172,081.17x = 23,627,109,671.57
  5. Step 5: Solve for x
    x = 23,627,109,671.57/172,081.17
  6. Step 6: Final answer
    x = 137,302.12

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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.