Home / 140,904.12-194,447.34-77,242.20

Finding the Fourth Proportional to 140,904.12, 194,447.34 and 77,242.20

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Solution

The fourth proportional to 140,904.12, 194,447.34 and 77,242.20 is: 106,594.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,904.12 : 194,447.34 = 77,242.20 : x
  2. Step 2: Convert to fraction form
    140,904.12/194,447.34 = 77,242.20/x
  3. Step 3: Cross multiply
    140,904.12x = 194,447.34 × 77,242.20
  4. Step 4: Simplify right side
    140,904.12x = 15,019,540,325.75
  5. Step 5: Solve for x
    x = 15,019,540,325.75/140,904.12
  6. Step 6: Final answer
    x = 106,594.05

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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.