Home / 109,959.20-151,727.56-61,558.61

Finding the Fourth Proportional to 109,959.20, 151,727.56 and 61,558.61

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Solution

The fourth proportional to 109,959.20, 151,727.56 and 61,558.61 is: 84,941.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,959.20 : 151,727.56 = 61,558.61 : x
  2. Step 2: Convert to fraction form
    109,959.20/151,727.56 = 61,558.61/x
  3. Step 3: Cross multiply
    109,959.20x = 151,727.56 × 61,558.61
  4. Step 4: Simplify right side
    109,959.20x = 9,340,137,692.29
  5. Step 5: Solve for x
    x = 9,340,137,692.29/109,959.20
  6. Step 6: Final answer
    x = 84,941.85

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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.