Home / 84,823.20-127,234.80-75,637.80

Finding the Fourth Proportional to 84,823.20, 127,234.80 and 75,637.80

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Solution

The fourth proportional to 84,823.20, 127,234.80 and 75,637.80 is: 113,456.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,823.20 : 127,234.80 = 75,637.80 : x
  2. Step 2: Convert to fraction form
    84,823.20/127,234.80 = 75,637.80/x
  3. Step 3: Cross multiply
    84,823.20x = 127,234.80 × 75,637.80
  4. Step 4: Simplify right side
    84,823.20x = 9,623,760,355.44
  5. Step 5: Solve for x
    x = 9,623,760,355.44/84,823.20
  6. Step 6: Final answer
    x = 113,456.70

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1.5x scale

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.