Home / 109,854.20-164,781.30-90,827.30

Finding the Fourth Proportional to 109,854.20, 164,781.30 and 90,827.30

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Solution

The fourth proportional to 109,854.20, 164,781.30 and 90,827.30 is: 136,240.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,854.20 : 164,781.30 = 90,827.30 : x
  2. Step 2: Convert to fraction form
    109,854.20/164,781.30 = 90,827.30/x
  3. Step 3: Cross multiply
    109,854.20x = 164,781.30 × 90,827.30
  4. Step 4: Simplify right side
    109,854.20x = 14,966,640,569.49
  5. Step 5: Solve for x
    x = 14,966,640,569.49/109,854.20
  6. Step 6: Final answer
    x = 136,240.95

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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.