Home / 156,686.20-216,227.10-85,066.18

Finding the Fourth Proportional to 156,686.20, 216,227.10 and 85,066.18

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Solution

The fourth proportional to 156,686.20, 216,227.10 and 85,066.18 is: 117,391.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,686.20 : 216,227.10 = 85,066.18 : x
  2. Step 2: Convert to fraction form
    156,686.20/216,227.10 = 85,066.18/x
  3. Step 3: Cross multiply
    156,686.20x = 216,227.10 × 85,066.18
  4. Step 4: Simplify right side
    156,686.20x = 18,393,613,409.48
  5. Step 5: Solve for x
    x = 18,393,613,409.48/156,686.20
  6. Step 6: Final answer
    x = 117,391.41

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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.