Home / 153,382.68-211,635.45-89,708.04

Finding the Fourth Proportional to 153,382.68, 211,635.45 and 89,708.04

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Solution

The fourth proportional to 153,382.68, 211,635.45 and 89,708.04 is: 123,778.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,382.68 : 211,635.45 = 89,708.04 : x
  2. Step 2: Convert to fraction form
    153,382.68/211,635.45 = 89,708.04/x
  3. Step 3: Cross multiply
    153,382.68x = 211,635.45 × 89,708.04
  4. Step 4: Simplify right side
    153,382.68x = 18,985,401,414.02
  5. Step 5: Solve for x
    x = 18,985,401,414.02/153,382.68
  6. Step 6: Final answer
    x = 123,778.00

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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.