Home / 145,242.48-217,863.87-45,403.20

Finding the Fourth Proportional to 145,242.48, 217,863.87 and 45,403.20

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Solution

The fourth proportional to 145,242.48, 217,863.87 and 45,403.20 is: 68,104.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,242.48 : 217,863.87 = 45,403.20 : x
  2. Step 2: Convert to fraction form
    145,242.48/217,863.87 = 45,403.20/x
  3. Step 3: Cross multiply
    145,242.48x = 217,863.87 × 45,403.20
  4. Step 4: Simplify right side
    145,242.48x = 9,891,716,862.38
  5. Step 5: Solve for x
    x = 9,891,716,862.38/145,242.48
  6. Step 6: Final answer
    x = 68,104.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.