Home / 156,769.12-216,343.04-85,150.52

Finding the Fourth Proportional to 156,769.12, 216,343.04 and 85,150.52

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Solution

The fourth proportional to 156,769.12, 216,343.04 and 85,150.52 is: 117,508.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,769.12 : 216,343.04 = 85,150.52 : x
  2. Step 2: Convert to fraction form
    156,769.12/216,343.04 = 85,150.52/x
  3. Step 3: Cross multiply
    156,769.12x = 216,343.04 × 85,150.52
  4. Step 4: Simplify right side
    156,769.12x = 18,421,722,354.38
  5. Step 5: Solve for x
    x = 18,421,722,354.38/156,769.12
  6. Step 6: Final answer
    x = 117,508.62

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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.