Home / 178,220.10-267,402.15-78,399.30

Finding the Fourth Proportional to 178,220.10, 267,402.15 and 78,399.30

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Solution

The fourth proportional to 178,220.10, 267,402.15 and 78,399.30 is: 117,630.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,220.10 : 267,402.15 = 78,399.30 : x
  2. Step 2: Convert to fraction form
    178,220.10/267,402.15 = 78,399.30/x
  3. Step 3: Cross multiply
    178,220.10x = 267,402.15 × 78,399.30
  4. Step 4: Simplify right side
    178,220.10x = 20,964,141,378.50
  5. Step 5: Solve for x
    x = 20,964,141,378.50/178,220.10
  6. Step 6: Final answer
    x = 117,630.62

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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.