Home / 154,258.56-231,602-79,432.20

Finding the Fourth Proportional to 154,258.56, 231,602 and 79,432.20

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Solution

The fourth proportional to 154,258.56, 231,602 and 79,432.20 is: 119,258.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,258.56 : 231,602 = 79,432.20 : x
  2. Step 2: Convert to fraction form
    154,258.56/231,602 = 79,432.20/x
  3. Step 3: Cross multiply
    154,258.56x = 231,602 × 79,432.20
  4. Step 4: Simplify right side
    154,258.56x = 18,396,656,384.40
  5. Step 5: Solve for x
    x = 18,396,656,384.40/154,258.56
  6. Step 6: Final answer
    x = 119,258.58

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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.