Home / 215,927.04-297,979.84-120,439.92

Finding the Fourth Proportional to 215,927.04, 297,979.84 and 120,439.92

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Solution

The fourth proportional to 215,927.04, 297,979.84 and 120,439.92 is: 166,207.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,927.04 : 297,979.84 = 120,439.92 : x
  2. Step 2: Convert to fraction form
    215,927.04/297,979.84 = 120,439.92/x
  3. Step 3: Cross multiply
    215,927.04x = 297,979.84 × 120,439.92
  4. Step 4: Simplify right side
    215,927.04x = 35,888,668,091.21
  5. Step 5: Solve for x
    x = 35,888,668,091.21/215,927.04
  6. Step 6: Final answer
    x = 166,207.38

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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.