Home / 109,458.40-151,108.16-69,213.44

Finding the Fourth Proportional to 109,458.40, 151,108.16 and 69,213.44

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Solution

The fourth proportional to 109,458.40, 151,108.16 and 69,213.44 is: 95,549.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,458.40 : 151,108.16 = 69,213.44 : x
  2. Step 2: Convert to fraction form
    109,458.40/151,108.16 = 69,213.44/x
  3. Step 3: Cross multiply
    109,458.40x = 151,108.16 × 69,213.44
  4. Step 4: Simplify right side
    109,458.40x = 10,458,715,565.67
  5. Step 5: Solve for x
    x = 10,458,715,565.67/109,458.40
  6. Step 6: Final answer
    x = 95,549.68

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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.