Home / 154,420.20-231,630.30-75,688.20

Finding the Fourth Proportional to 154,420.20, 231,630.30 and 75,688.20

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Solution

The fourth proportional to 154,420.20, 231,630.30 and 75,688.20 is: 113,532.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,420.20 : 231,630.30 = 75,688.20 : x
  2. Step 2: Convert to fraction form
    154,420.20/231,630.30 = 75,688.20/x
  3. Step 3: Cross multiply
    154,420.20x = 231,630.30 × 75,688.20
  4. Step 4: Simplify right side
    154,420.20x = 17,531,680,472.46
  5. Step 5: Solve for x
    x = 17,531,680,472.46/154,420.20
  6. Step 6: Final answer
    x = 113,532.30

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1.5x scale

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.