Home / 142,757.10-214,135.65-129,635.10

Finding the Fourth Proportional to 142,757.10, 214,135.65 and 129,635.10

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Solution

The fourth proportional to 142,757.10, 214,135.65 and 129,635.10 is: 194,452.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,757.10 : 214,135.65 = 129,635.10 : x
  2. Step 2: Convert to fraction form
    142,757.10/214,135.65 = 129,635.10/x
  3. Step 3: Cross multiply
    142,757.10x = 214,135.65 × 129,635.10
  4. Step 4: Simplify right side
    142,757.10x = 27,759,496,401.32
  5. Step 5: Solve for x
    x = 27,759,496,401.32/142,757.10
  6. Step 6: Final answer
    x = 194,452.65

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1.5x scale

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.