Home / 156,170.40-215,515.08-84,550.38

Finding the Fourth Proportional to 156,170.40, 215,515.08 and 84,550.38

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Solution

The fourth proportional to 156,170.40, 215,515.08 and 84,550.38 is: 116,679.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,170.40 : 215,515.08 = 84,550.38 : x
  2. Step 2: Convert to fraction form
    156,170.40/215,515.08 = 84,550.38/x
  3. Step 3: Cross multiply
    156,170.40x = 215,515.08 × 84,550.38
  4. Step 4: Simplify right side
    156,170.40x = 18,221,881,909.73
  5. Step 5: Solve for x
    x = 18,221,881,909.73/156,170.40
  6. Step 6: Final answer
    x = 116,679.49

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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.