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Finding the Fourth Proportional to 103,466.08, 155,200.20 and 82,820.80

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Solution

The fourth proportional to 103,466.08, 155,200.20 and 82,820.80 is: 124,232.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,466.08 : 155,200.20 = 82,820.80 : x
  2. Step 2: Convert to fraction form
    103,466.08/155,200.20 = 82,820.80/x
  3. Step 3: Cross multiply
    103,466.08x = 155,200.20 × 82,820.80
  4. Step 4: Simplify right side
    103,466.08x = 12,853,804,724.16
  5. Step 5: Solve for x
    x = 12,853,804,724.16/103,466.08
  6. Step 6: Final answer
    x = 124,232.06

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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.