Home / 140,847.18-194,374.35-80,418.30

Finding the Fourth Proportional to 140,847.18, 194,374.35 and 80,418.30

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Solution

The fourth proportional to 140,847.18, 194,374.35 and 80,418.30 is: 110,980.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,847.18 : 194,374.35 = 80,418.30 : x
  2. Step 2: Convert to fraction form
    140,847.18/194,374.35 = 80,418.30/x
  3. Step 3: Cross multiply
    140,847.18x = 194,374.35 × 80,418.30
  4. Step 4: Simplify right side
    140,847.18x = 15,631,254,790.61
  5. Step 5: Solve for x
    x = 15,631,254,790.61/140,847.18
  6. Step 6: Final answer
    x = 110,980.25

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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.