Home / 109,616.32-151,270.20-61,869.52

Finding the Fourth Proportional to 109,616.32, 151,270.20 and 61,869.52

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Solution

The fourth proportional to 109,616.32, 151,270.20 and 61,869.52 is: 85,379.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,616.32 : 151,270.20 = 61,869.52 : x
  2. Step 2: Convert to fraction form
    109,616.32/151,270.20 = 61,869.52/x
  3. Step 3: Cross multiply
    109,616.32x = 151,270.20 × 61,869.52
  4. Step 4: Simplify right side
    109,616.32x = 9,359,014,664.30
  5. Step 5: Solve for x
    x = 9,359,014,664.30/109,616.32
  6. Step 6: Final answer
    x = 85,379.76

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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.