Home / 156,769.56-216,343.13-85,149.59

Finding the Fourth Proportional to 156,769.56, 216,343.13 and 85,149.59

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Solution

The fourth proportional to 156,769.56, 216,343.13 and 85,149.59 is: 117,507.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,769.56 : 216,343.13 = 85,149.59 : x
  2. Step 2: Convert to fraction form
    156,769.56/216,343.13 = 85,149.59/x
  3. Step 3: Cross multiply
    156,769.56x = 216,343.13 × 85,149.59
  4. Step 4: Simplify right side
    156,769.56x = 18,421,528,933.93
  5. Step 5: Solve for x
    x = 18,421,528,933.93/156,769.56
  6. Step 6: Final answer
    x = 117,507.05

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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.