Home / 103,476.08-155,215.20-82,830.80

Finding the Fourth Proportional to 103,476.08, 155,215.20 and 82,830.80

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Solution

The fourth proportional to 103,476.08, 155,215.20 and 82,830.80 is: 124,247.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,476.08 : 155,215.20 = 82,830.80 : x
  2. Step 2: Convert to fraction form
    103,476.08/155,215.20 = 82,830.80/x
  3. Step 3: Cross multiply
    103,476.08x = 155,215.20 × 82,830.80
  4. Step 4: Simplify right side
    103,476.08x = 12,856,599,188.16
  5. Step 5: Solve for x
    x = 12,856,599,188.16/103,476.08
  6. Step 6: Final answer
    x = 124,247.06

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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.