Home / 457,682.24-686,514.72-142,132.16

Finding the Fourth Proportional to 457,682.24, 686,514.72 and 142,132.16

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Solution

The fourth proportional to 457,682.24, 686,514.72 and 142,132.16 is: 213,195.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,682.24 : 686,514.72 = 142,132.16 : x
  2. Step 2: Convert to fraction form
    457,682.24/686,514.72 = 142,132.16/x
  3. Step 3: Cross multiply
    457,682.24x = 686,514.72 × 142,132.16
  4. Step 4: Simplify right side
    457,682.24x = 97,575,820,025.40
  5. Step 5: Solve for x
    x = 97,575,820,025.40/457,682.24
  6. Step 6: Final answer
    x = 213,195.56

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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.