Home / 154,554.90-231,645.15-65,621.70

Finding the Fourth Proportional to 154,554.90, 231,645.15 and 65,621.70

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Solution

The fourth proportional to 154,554.90, 231,645.15 and 65,621.70 is: 98,353.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,554.90 : 231,645.15 = 65,621.70 : x
  2. Step 2: Convert to fraction form
    154,554.90/231,645.15 = 65,621.70/x
  3. Step 3: Cross multiply
    154,554.90x = 231,645.15 × 65,621.70
  4. Step 4: Simplify right side
    154,554.90x = 15,200,948,539.76
  5. Step 5: Solve for x
    x = 15,200,948,539.76/154,554.90
  6. Step 6: Final answer
    x = 98,353.07

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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.