Home / 205,002.30-307,546.65-86,612.70

Finding the Fourth Proportional to 205,002.30, 307,546.65 and 86,612.70

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Solution

The fourth proportional to 205,002.30, 307,546.65 and 86,612.70 is: 129,937.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,002.30 : 307,546.65 = 86,612.70 : x
  2. Step 2: Convert to fraction form
    205,002.30/307,546.65 = 86,612.70/x
  3. Step 3: Cross multiply
    205,002.30x = 307,546.65 × 86,612.70
  4. Step 4: Simplify right side
    205,002.30x = 26,637,445,732.46
  5. Step 5: Solve for x
    x = 26,637,445,732.46/205,002.30
  6. Step 6: Final answer
    x = 129,937.30

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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.