Home / 154,809.20-231,906.60-89,068.40

Finding the Fourth Proportional to 154,809.20, 231,906.60 and 89,068.40

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Solution

The fourth proportional to 154,809.20, 231,906.60 and 89,068.40 is: 133,425.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,809.20 : 231,906.60 = 89,068.40 : x
  2. Step 2: Convert to fraction form
    154,809.20/231,906.60 = 89,068.40/x
  3. Step 3: Cross multiply
    154,809.20x = 231,906.60 × 89,068.40
  4. Step 4: Simplify right side
    154,809.20x = 20,655,549,811.44
  5. Step 5: Solve for x
    x = 20,655,549,811.44/154,809.20
  6. Step 6: Final answer
    x = 133,425.85

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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.