Home / 156,166.12-215,515.38-88,197.40

Finding the Fourth Proportional to 156,166.12, 215,515.38 and 88,197.40

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Solution

The fourth proportional to 156,166.12, 215,515.38 and 88,197.40 is: 121,715.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,166.12 : 215,515.38 = 88,197.40 : x
  2. Step 2: Convert to fraction form
    156,166.12/215,515.38 = 88,197.40/x
  3. Step 3: Cross multiply
    156,166.12x = 215,515.38 × 88,197.40
  4. Step 4: Simplify right side
    156,166.12x = 19,007,896,176.01
  5. Step 5: Solve for x
    x = 19,007,896,176.01/156,166.12
  6. Step 6: Final answer
    x = 121,715.88

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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.