Home / 156,307.08-215,700.79-87,396.24

Finding the Fourth Proportional to 156,307.08, 215,700.79 and 87,396.24

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Solution

The fourth proportional to 156,307.08, 215,700.79 and 87,396.24 is: 120,605.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,307.08 : 215,700.79 = 87,396.24 : x
  2. Step 2: Convert to fraction form
    156,307.08/215,700.79 = 87,396.24/x
  3. Step 3: Cross multiply
    156,307.08x = 215,700.79 × 87,396.24
  4. Step 4: Simplify right side
    156,307.08x = 18,851,438,011.03
  5. Step 5: Solve for x
    x = 18,851,438,011.03/156,307.08
  6. Step 6: Final answer
    x = 120,605.14

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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.