Home / 156,781.75-216,359.18-85,160.23

Finding the Fourth Proportional to 156,781.75, 216,359.18 and 85,160.23

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Solution

The fourth proportional to 156,781.75, 216,359.18 and 85,160.23 is: 117,521.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,781.75 : 216,359.18 = 85,160.23 : x
  2. Step 2: Convert to fraction form
    156,781.75/216,359.18 = 85,160.23/x
  3. Step 3: Cross multiply
    156,781.75x = 216,359.18 × 85,160.23
  4. Step 4: Simplify right side
    156,781.75x = 18,425,197,531.41
  5. Step 5: Solve for x
    x = 18,425,197,531.41/156,781.75
  6. Step 6: Final answer
    x = 117,521.32

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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.