Home / 156,217.76-215,580.52-84,597.78

Finding the Fourth Proportional to 156,217.76, 215,580.52 and 84,597.78

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Solution

The fourth proportional to 156,217.76, 215,580.52 and 84,597.78 is: 116,744.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,217.76 : 215,580.52 = 84,597.78 : x
  2. Step 2: Convert to fraction form
    156,217.76/215,580.52 = 84,597.78/x
  3. Step 3: Cross multiply
    156,217.76x = 215,580.52 × 84,597.78
  4. Step 4: Simplify right side
    156,217.76x = 18,237,632,980.26
  5. Step 5: Solve for x
    x = 18,237,632,980.26/156,217.76
  6. Step 6: Final answer
    x = 116,744.94

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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.