Home / 215,501.76-297,391.68-120,009.60

Finding the Fourth Proportional to 215,501.76, 297,391.68 and 120,009.60

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Solution

The fourth proportional to 215,501.76, 297,391.68 and 120,009.60 is: 165,612.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,501.76 : 297,391.68 = 120,009.60 : x
  2. Step 2: Convert to fraction form
    215,501.76/297,391.68 = 120,009.60/x
  3. Step 3: Cross multiply
    215,501.76x = 297,391.68 × 120,009.60
  4. Step 4: Simplify right side
    215,501.76x = 35,689,856,560.13
  5. Step 5: Solve for x
    x = 35,689,856,560.13/215,501.76
  6. Step 6: Final answer
    x = 165,612.83

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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.