Home / 154,472.74-231,429.35-129,672.16

Finding the Fourth Proportional to 154,472.74, 231,429.35 and 129,672.16

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Solution

The fourth proportional to 154,472.74, 231,429.35 and 129,672.16 is: 194,273.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,472.74 : 231,429.35 = 129,672.16 : x
  2. Step 2: Convert to fraction form
    154,472.74/231,429.35 = 129,672.16/x
  3. Step 3: Cross multiply
    154,472.74x = 231,429.35 × 129,672.16
  4. Step 4: Simplify right side
    154,472.74x = 30,009,943,447.50
  5. Step 5: Solve for x
    x = 30,009,943,447.50/154,472.74
  6. Step 6: Final answer
    x = 194,273.40

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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.