Home / 109,684.80-151,363.08-61,934.76

Finding the Fourth Proportional to 109,684.80, 151,363.08 and 61,934.76

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Solution

The fourth proportional to 109,684.80, 151,363.08 and 61,934.76 is: 85,468.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,684.80 : 151,363.08 = 61,934.76 : x
  2. Step 2: Convert to fraction form
    109,684.80/151,363.08 = 61,934.76/x
  3. Step 3: Cross multiply
    109,684.80x = 151,363.08 × 61,934.76
  4. Step 4: Simplify right side
    109,684.80x = 9,374,636,032.66
  5. Step 5: Solve for x
    x = 9,374,636,032.66/109,684.80
  6. Step 6: Final answer
    x = 85,468.87

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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.