Home / 156,217.55-215,580.42-84,597.68

Finding the Fourth Proportional to 156,217.55, 215,580.42 and 84,597.68

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Solution

The fourth proportional to 156,217.55, 215,580.42 and 84,597.68 is: 116,744.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,217.55 : 215,580.42 = 84,597.68 : x
  2. Step 2: Convert to fraction form
    156,217.55/215,580.42 = 84,597.68/x
  3. Step 3: Cross multiply
    156,217.55x = 215,580.42 × 84,597.68
  4. Step 4: Simplify right side
    156,217.55x = 18,237,603,924.38
  5. Step 5: Solve for x
    x = 18,237,603,924.38/156,217.55
  6. Step 6: Final answer
    x = 116,744.91

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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.