Home / 215,864.06-297,893.70-120,376.80

Finding the Fourth Proportional to 215,864.06, 297,893.70 and 120,376.80

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Solution

The fourth proportional to 215,864.06, 297,893.70 and 120,376.80 is: 166,120.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,864.06 : 297,893.70 = 120,376.80 : x
  2. Step 2: Convert to fraction form
    215,864.06/297,893.70 = 120,376.80/x
  3. Step 3: Cross multiply
    215,864.06x = 297,893.70 × 120,376.80
  4. Step 4: Simplify right side
    215,864.06x = 35,859,490,346.16
  5. Step 5: Solve for x
    x = 35,859,490,346.16/215,864.06
  6. Step 6: Final answer
    x = 166,120.71

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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.