Home / 156,769.96-216,344.10-85,150.60

Finding the Fourth Proportional to 156,769.96, 216,344.10 and 85,150.60

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Solution

The fourth proportional to 156,769.96, 216,344.10 and 85,150.60 is: 117,508.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,769.96 : 216,344.10 = 85,150.60 : x
  2. Step 2: Convert to fraction form
    156,769.96/216,344.10 = 85,150.60/x
  3. Step 3: Cross multiply
    156,769.96x = 216,344.10 × 85,150.60
  4. Step 4: Simplify right side
    156,769.96x = 18,421,829,921.46
  5. Step 5: Solve for x
    x = 18,421,829,921.46/156,769.96
  6. Step 6: Final answer
    x = 117,508.67

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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.