Home / 115,151.82-158,909.13-64,166.73

Finding the Fourth Proportional to 115,151.82, 158,909.13 and 64,166.73

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Solution

The fourth proportional to 115,151.82, 158,909.13 and 64,166.73 is: 88,549.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,151.82 : 158,909.13 = 64,166.73 : x
  2. Step 2: Convert to fraction form
    115,151.82/158,909.13 = 64,166.73/x
  3. Step 3: Cross multiply
    115,151.82x = 158,909.13 × 64,166.73
  4. Step 4: Simplify right side
    115,151.82x = 10,196,679,239.24
  5. Step 5: Solve for x
    x = 10,196,679,239.24/115,151.82
  6. Step 6: Final answer
    x = 88,549.87

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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.