Home / 156,788.92-216,369.12-85,168.36

Finding the Fourth Proportional to 156,788.92, 216,369.12 and 85,168.36

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Solution

The fourth proportional to 156,788.92, 216,369.12 and 85,168.36 is: 117,532.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,788.92 : 216,369.12 = 85,168.36 : x
  2. Step 2: Convert to fraction form
    156,788.92/216,369.12 = 85,168.36/x
  3. Step 3: Cross multiply
    156,788.92x = 216,369.12 × 85,168.36
  4. Step 4: Simplify right side
    156,788.92x = 18,427,803,105.04
  5. Step 5: Solve for x
    x = 18,427,803,105.04/156,788.92
  6. Step 6: Final answer
    x = 117,532.56

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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.