Home / 156,082.65-215,403.82-88,111.14

Finding the Fourth Proportional to 156,082.65, 215,403.82 and 88,111.14

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Solution

The fourth proportional to 156,082.65, 215,403.82 and 88,111.14 is: 121,598.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,082.65 : 215,403.82 = 88,111.14 : x
  2. Step 2: Convert to fraction form
    156,082.65/215,403.82 = 88,111.14/x
  3. Step 3: Cross multiply
    156,082.65x = 215,403.82 × 88,111.14
  4. Step 4: Simplify right side
    156,082.65x = 18,979,476,140.55
  5. Step 5: Solve for x
    x = 18,979,476,140.55/156,082.65
  6. Step 6: Final answer
    x = 121,598.88

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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.