Home / 136,747.17-205,197.30-57,920.40

Finding the Fourth Proportional to 136,747.17, 205,197.30 and 57,920.40

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Solution

The fourth proportional to 136,747.17, 205,197.30 and 57,920.40 is: 86,913.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,747.17 : 205,197.30 = 57,920.40 : x
  2. Step 2: Convert to fraction form
    136,747.17/205,197.30 = 57,920.40/x
  3. Step 3: Cross multiply
    136,747.17x = 205,197.30 × 57,920.40
  4. Step 4: Simplify right side
    136,747.17x = 11,885,109,694.92
  5. Step 5: Solve for x
    x = 11,885,109,694.92/136,747.17
  6. Step 6: Final answer
    x = 86,913.02

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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.