Home / 141,817.20-212,495.40-89,132.40

Finding the Fourth Proportional to 141,817.20, 212,495.40 and 89,132.40

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Solution

The fourth proportional to 141,817.20, 212,495.40 and 89,132.40 is: 133,553.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,817.20 : 212,495.40 = 89,132.40 : x
  2. Step 2: Convert to fraction form
    141,817.20/212,495.40 = 89,132.40/x
  3. Step 3: Cross multiply
    141,817.20x = 212,495.40 × 89,132.40
  4. Step 4: Simplify right side
    141,817.20x = 18,940,224,990.96
  5. Step 5: Solve for x
    x = 18,940,224,990.96/141,817.20
  6. Step 6: Final answer
    x = 133,553.79

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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.