Home / 156,788.82-216,370.08-85,170.24

Finding the Fourth Proportional to 156,788.82, 216,370.08 and 85,170.24

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Solution

The fourth proportional to 156,788.82, 216,370.08 and 85,170.24 is: 117,535.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,788.82 : 216,370.08 = 85,170.24 : x
  2. Step 2: Convert to fraction form
    156,788.82/216,370.08 = 85,170.24/x
  3. Step 3: Cross multiply
    156,788.82x = 216,370.08 × 85,170.24
  4. Step 4: Simplify right side
    156,788.82x = 18,428,291,642.42
  5. Step 5: Solve for x
    x = 18,428,291,642.42/156,788.82
  6. Step 6: Final answer
    x = 117,535.75

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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.