Home / 156,763.76-216,335.56-85,145.18

Finding the Fourth Proportional to 156,763.76, 216,335.56 and 85,145.18

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Solution

The fourth proportional to 156,763.76, 216,335.56 and 85,145.18 is: 117,501.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,763.76 : 216,335.56 = 85,145.18 : x
  2. Step 2: Convert to fraction form
    156,763.76/216,335.56 = 85,145.18/x
  3. Step 3: Cross multiply
    156,763.76x = 216,335.56 × 85,145.18
  4. Step 4: Simplify right side
    156,763.76x = 18,419,930,196.60
  5. Step 5: Solve for x
    x = 18,419,930,196.60/156,763.76
  6. Step 6: Final answer
    x = 117,501.20

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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.