Home / 156,082.84-215,404.08-88,111.33

Finding the Fourth Proportional to 156,082.84, 215,404.08 and 88,111.33

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Solution

The fourth proportional to 156,082.84, 215,404.08 and 88,111.33 is: 121,599.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,082.84 : 215,404.08 = 88,111.33 : x
  2. Step 2: Convert to fraction form
    156,082.84/215,404.08 = 88,111.33/x
  3. Step 3: Cross multiply
    156,082.84x = 215,404.08 × 88,111.33
  4. Step 4: Simplify right side
    156,082.84x = 18,979,539,915.06
  5. Step 5: Solve for x
    x = 18,979,539,915.06/156,082.84
  6. Step 6: Final answer
    x = 121,599.14

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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.