Home / 215,622.52-297,568.28-120,129.19

Finding the Fourth Proportional to 215,622.52, 297,568.28 and 120,129.19

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Solution

The fourth proportional to 215,622.52, 297,568.28 and 120,129.19 is: 165,783.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,622.52 : 297,568.28 = 120,129.19 : x
  2. Step 2: Convert to fraction form
    215,622.52/297,568.28 = 120,129.19/x
  3. Step 3: Cross multiply
    215,622.52x = 297,568.28 × 120,129.19
  4. Step 4: Simplify right side
    215,622.52x = 35,746,636,446.09
  5. Step 5: Solve for x
    x = 35,746,636,446.09/215,622.52
  6. Step 6: Final answer
    x = 165,783.41

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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.