Home / 215,927.06-297,979.86-120,439.94

Finding the Fourth Proportional to 215,927.06, 297,979.86 and 120,439.94

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Solution

The fourth proportional to 215,927.06, 297,979.86 and 120,439.94 is: 166,207.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,927.06 : 297,979.86 = 120,439.94 : x
  2. Step 2: Convert to fraction form
    215,927.06/297,979.86 = 120,439.94/x
  3. Step 3: Cross multiply
    215,927.06x = 297,979.86 × 120,439.94
  4. Step 4: Simplify right side
    215,927.06x = 35,888,676,459.61
  5. Step 5: Solve for x
    x = 35,888,676,459.61/215,927.06
  6. Step 6: Final answer
    x = 166,207.41

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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.