Home / 156,631.11-216,151.13-85,011.13

Finding the Fourth Proportional to 156,631.11, 216,151.13 and 85,011.13

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Solution

The fourth proportional to 156,631.11, 216,151.13 and 85,011.13 is: 117,315.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,631.11 : 216,151.13 = 85,011.13 : x
  2. Step 2: Convert to fraction form
    156,631.11/216,151.13 = 85,011.13/x
  3. Step 3: Cross multiply
    156,631.11x = 216,151.13 × 85,011.13
  4. Step 4: Simplify right side
    156,631.11x = 18,375,251,812.08
  5. Step 5: Solve for x
    x = 18,375,251,812.08/156,631.11
  6. Step 6: Final answer
    x = 117,315.47

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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.