Home / 201,385.20-277,842.40-124,876.72

Finding the Fourth Proportional to 201,385.20, 277,842.40 and 124,876.72

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Solution

The fourth proportional to 201,385.20, 277,842.40 and 124,876.72 is: 172,286.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,385.20 : 277,842.40 = 124,876.72 : x
  2. Step 2: Convert to fraction form
    201,385.20/277,842.40 = 124,876.72/x
  3. Step 3: Cross multiply
    201,385.20x = 277,842.40 × 124,876.72
  4. Step 4: Simplify right side
    201,385.20x = 34,696,047,588.93
  5. Step 5: Solve for x
    x = 34,696,047,588.93/201,385.20
  6. Step 6: Final answer
    x = 172,286.98

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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.