Home / 140,902.12-194,444.58-77,240.20

Finding the Fourth Proportional to 140,902.12, 194,444.58 and 77,240.20

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Solution

The fourth proportional to 140,902.12, 194,444.58 and 77,240.20 is: 106,591.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,902.12 : 194,444.58 = 77,240.20 : x
  2. Step 2: Convert to fraction form
    140,902.12/194,444.58 = 77,240.20/x
  3. Step 3: Cross multiply
    140,902.12x = 194,444.58 × 77,240.20
  4. Step 4: Simplify right side
    140,902.12x = 15,018,938,248.12
  5. Step 5: Solve for x
    x = 15,018,938,248.12/140,902.12
  6. Step 6: Final answer
    x = 106,591.29

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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.