Home / 103,385.90-155,100.45-33,272.30

Finding the Fourth Proportional to 103,385.90, 155,100.45 and 33,272.30

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Solution

The fourth proportional to 103,385.90, 155,100.45 and 33,272.30 is: 49,915.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,385.90 : 155,100.45 = 33,272.30 : x
  2. Step 2: Convert to fraction form
    103,385.90/155,100.45 = 33,272.30/x
  3. Step 3: Cross multiply
    103,385.90x = 155,100.45 × 33,272.30
  4. Step 4: Simplify right side
    103,385.90x = 5,160,548,702.54
  5. Step 5: Solve for x
    x = 5,160,548,702.54/103,385.90
  6. Step 6: Final answer
    x = 49,915.40

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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.