Home / 156,680.89-216,222.20-85,060.97

Finding the Fourth Proportional to 156,680.89, 216,222.20 and 85,060.97

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Solution

The fourth proportional to 156,680.89, 216,222.20 and 85,060.97 is: 117,385.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,680.89 : 216,222.20 = 85,060.97 : x
  2. Step 2: Convert to fraction form
    156,680.89/216,222.20 = 85,060.97/x
  3. Step 3: Cross multiply
    156,680.89x = 216,222.20 × 85,060.97
  4. Step 4: Simplify right side
    156,680.89x = 18,392,070,483.50
  5. Step 5: Solve for x
    x = 18,392,070,483.50/156,680.89
  6. Step 6: Final answer
    x = 117,385.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.