Home / 156,747.08-216,310.92-85,127.12

Finding the Fourth Proportional to 156,747.08, 216,310.92 and 85,127.12

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Solution

The fourth proportional to 156,747.08, 216,310.92 and 85,127.12 is: 117,475.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,747.08 : 216,310.92 = 85,127.12 : x
  2. Step 2: Convert to fraction form
    156,747.08/216,310.92 = 85,127.12/x
  3. Step 3: Cross multiply
    156,747.08x = 216,310.92 × 85,127.12
  4. Step 4: Simplify right side
    156,747.08x = 18,413,925,644.15
  5. Step 5: Solve for x
    x = 18,413,925,644.15/156,747.08
  6. Step 6: Final answer
    x = 117,475.40

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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.