Home / 215,582.45-297,512.97-120,089.19

Finding the Fourth Proportional to 215,582.45, 297,512.97 and 120,089.19

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Solution

The fourth proportional to 215,582.45, 297,512.97 and 120,089.19 is: 165,728.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,582.45 : 297,512.97 = 120,089.19 : x
  2. Step 2: Convert to fraction form
    215,582.45/297,512.97 = 120,089.19/x
  3. Step 3: Cross multiply
    215,582.45x = 297,512.97 × 120,089.19
  4. Step 4: Simplify right side
    215,582.45x = 35,728,091,581.79
  5. Step 5: Solve for x
    x = 35,728,091,581.79/215,582.45
  6. Step 6: Final answer
    x = 165,728.20

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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.