Home / 156,167.12-215,516.76-88,198.40

Finding the Fourth Proportional to 156,167.12, 215,516.76 and 88,198.40

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Solution

The fourth proportional to 156,167.12, 215,516.76 and 88,198.40 is: 121,717.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,167.12 : 215,516.76 = 88,198.40 : x
  2. Step 2: Convert to fraction form
    156,167.12/215,516.76 = 88,198.40/x
  3. Step 3: Cross multiply
    156,167.12x = 215,516.76 × 88,198.40
  4. Step 4: Simplify right side
    156,167.12x = 19,008,233,405.18
  5. Step 5: Solve for x
    x = 19,008,233,405.18/156,167.12
  6. Step 6: Final answer
    x = 121,717.26

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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.