Home / 140,191.20-193,437.98-79,758.32

Finding the Fourth Proportional to 140,191.20, 193,437.98 and 79,758.32

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Solution

The fourth proportional to 140,191.20, 193,437.98 and 79,758.32 is: 110,051.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,191.20 : 193,437.98 = 79,758.32 : x
  2. Step 2: Convert to fraction form
    140,191.20/193,437.98 = 79,758.32/x
  3. Step 3: Cross multiply
    140,191.20x = 193,437.98 × 79,758.32
  4. Step 4: Simplify right side
    140,191.20x = 15,428,286,943.01
  5. Step 5: Solve for x
    x = 15,428,286,943.01/140,191.20
  6. Step 6: Final answer
    x = 110,051.75

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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.