Home / 131,531.10-197,296.65-89,540.70

Finding the Fourth Proportional to 131,531.10, 197,296.65 and 89,540.70

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Solution

The fourth proportional to 131,531.10, 197,296.65 and 89,540.70 is: 134,311.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,531.10 : 197,296.65 = 89,540.70 : x
  2. Step 2: Convert to fraction form
    131,531.10/197,296.65 = 89,540.70/x
  3. Step 3: Cross multiply
    131,531.10x = 197,296.65 × 89,540.70
  4. Step 4: Simplify right side
    131,531.10x = 17,666,080,148.66
  5. Step 5: Solve for x
    x = 17,666,080,148.66/131,531.10
  6. Step 6: Final answer
    x = 134,311.05

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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.