Home / 109,609.29-151,110.18-69,302.88

Finding the Fourth Proportional to 109,609.29, 151,110.18 and 69,302.88

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Solution

The fourth proportional to 109,609.29, 151,110.18 and 69,302.88 is: 95,542.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,609.29 : 151,110.18 = 69,302.88 : x
  2. Step 2: Convert to fraction form
    109,609.29/151,110.18 = 69,302.88/x
  3. Step 3: Cross multiply
    109,609.29x = 151,110.18 × 69,302.88
  4. Step 4: Simplify right side
    109,609.29x = 10,472,370,671.32
  5. Step 5: Solve for x
    x = 10,472,370,671.32/109,609.29
  6. Step 6: Final answer
    x = 95,542.73

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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.