Home / 103,470.08-155,206.20-82,824.80

Finding the Fourth Proportional to 103,470.08, 155,206.20 and 82,824.80

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Solution

The fourth proportional to 103,470.08, 155,206.20 and 82,824.80 is: 124,238.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,470.08 : 155,206.20 = 82,824.80 : x
  2. Step 2: Convert to fraction form
    103,470.08/155,206.20 = 82,824.80/x
  3. Step 3: Cross multiply
    103,470.08x = 155,206.20 × 82,824.80
  4. Step 4: Simplify right side
    103,470.08x = 12,854,922,473.76
  5. Step 5: Solve for x
    x = 12,854,922,473.76/103,470.08
  6. Step 6: Final answer
    x = 124,238.06

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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.