Home / 109,862.98-151,612.08-64,542.85

Finding the Fourth Proportional to 109,862.98, 151,612.08 and 64,542.85

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Solution

The fourth proportional to 109,862.98, 151,612.08 and 64,542.85 is: 89,069.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,862.98 : 151,612.08 = 64,542.85 : x
  2. Step 2: Convert to fraction form
    109,862.98/151,612.08 = 64,542.85/x
  3. Step 3: Cross multiply
    109,862.98x = 151,612.08 × 64,542.85
  4. Step 4: Simplify right side
    109,862.98x = 9,785,475,737.63
  5. Step 5: Solve for x
    x = 9,785,475,737.63/109,862.98
  6. Step 6: Final answer
    x = 89,069.82

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1.5x scale

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.