Home / 156,633.59-216,154.56-85,013.61

Finding the Fourth Proportional to 156,633.59, 216,154.56 and 85,013.61

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Solution

The fourth proportional to 156,633.59, 216,154.56 and 85,013.61 is: 117,318.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,633.59 : 216,154.56 = 85,013.61 : x
  2. Step 2: Convert to fraction form
    156,633.59/216,154.56 = 85,013.61/x
  3. Step 3: Cross multiply
    156,633.59x = 216,154.56 × 85,013.61
  4. Step 4: Simplify right side
    156,633.59x = 18,376,079,463.56
  5. Step 5: Solve for x
    x = 18,376,079,463.56/156,633.59
  6. Step 6: Final answer
    x = 117,318.89

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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.