Home / 154,456.40-231,681.18-42,134.60

Finding the Fourth Proportional to 154,456.40, 231,681.18 and 42,134.60

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Solution

The fourth proportional to 154,456.40, 231,681.18 and 42,134.60 is: 63,200.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,456.40 : 231,681.18 = 42,134.60 : x
  2. Step 2: Convert to fraction form
    154,456.40/231,681.18 = 42,134.60/x
  3. Step 3: Cross multiply
    154,456.40x = 231,681.18 × 42,134.60
  4. Step 4: Simplify right side
    154,456.40x = 9,761,793,846.83
  5. Step 5: Solve for x
    x = 9,761,793,846.83/154,456.40
  6. Step 6: Final answer
    x = 63,200.97

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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.