Home / 140,276.40-209,896.20-127,834.80

Finding the Fourth Proportional to 140,276.40, 209,896.20 and 127,834.80

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Solution

The fourth proportional to 140,276.40, 209,896.20 and 127,834.80 is: 191,279.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,276.40 : 209,896.20 = 127,834.80 : x
  2. Step 2: Convert to fraction form
    140,276.40/209,896.20 = 127,834.80/x
  3. Step 3: Cross multiply
    140,276.40x = 209,896.20 × 127,834.80
  4. Step 4: Simplify right side
    140,276.40x = 26,832,038,747.76
  5. Step 5: Solve for x
    x = 26,832,038,747.76/140,276.40
  6. Step 6: Final answer
    x = 191,279.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.