Home / 153,154.24-211,321.87-89,479.73

Finding the Fourth Proportional to 153,154.24, 211,321.87 and 89,479.73

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Solution

The fourth proportional to 153,154.24, 211,321.87 and 89,479.73 is: 123,463.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,154.24 : 211,321.87 = 89,479.73 : x
  2. Step 2: Convert to fraction form
    153,154.24/211,321.87 = 89,479.73/x
  3. Step 3: Cross multiply
    153,154.24x = 211,321.87 × 89,479.73
  4. Step 4: Simplify right side
    153,154.24x = 18,909,023,870.70
  5. Step 5: Solve for x
    x = 18,909,023,870.70/153,154.24
  6. Step 6: Final answer
    x = 123,463.93

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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.