Home / 148,112.12-204,393.88-80,128.88

Finding the Fourth Proportional to 148,112.12, 204,393.88 and 80,128.88

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Solution

The fourth proportional to 148,112.12, 204,393.88 and 80,128.88 is: 110,577.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,112.12 : 204,393.88 = 80,128.88 : x
  2. Step 2: Convert to fraction form
    148,112.12/204,393.88 = 80,128.88/x
  3. Step 3: Cross multiply
    148,112.12x = 204,393.88 × 80,128.88
  4. Step 4: Simplify right side
    148,112.12x = 16,377,852,683.25
  5. Step 5: Solve for x
    x = 16,377,852,683.25/148,112.12
  6. Step 6: Final answer
    x = 110,577.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.