Home / 156,767.72-216,340.59-85,147.76

Finding the Fourth Proportional to 156,767.72, 216,340.59 and 85,147.76

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Solution

The fourth proportional to 156,767.72, 216,340.59 and 85,147.76 is: 117,504.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,767.72 : 216,340.59 = 85,147.76 : x
  2. Step 2: Convert to fraction form
    156,767.72/216,340.59 = 85,147.76/x
  3. Step 3: Cross multiply
    156,767.72x = 216,340.59 × 85,147.76
  4. Step 4: Simplify right side
    156,767.72x = 18,420,916,684.46
  5. Step 5: Solve for x
    x = 18,420,916,684.46/156,767.72
  6. Step 6: Final answer
    x = 117,504.53

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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.