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Finding the Fourth Proportional to 154,534.80, 231,629.40 and 65,773.20

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Solution

The fourth proportional to 154,534.80, 231,629.40 and 65,773.20 is: 98,586.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,534.80 : 231,629.40 = 65,773.20 : x
  2. Step 2: Convert to fraction form
    154,534.80/231,629.40 = 65,773.20/x
  3. Step 3: Cross multiply
    154,534.80x = 231,629.40 × 65,773.20
  4. Step 4: Simplify right side
    154,534.80x = 15,235,006,852.08
  5. Step 5: Solve for x
    x = 15,235,006,852.08/154,534.80
  6. Step 6: Final answer
    x = 98,586.25

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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.