Home / 140,453.30-193,842.57-79,211.15

Finding the Fourth Proportional to 140,453.30, 193,842.57 and 79,211.15

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Solution

The fourth proportional to 140,453.30, 193,842.57 and 79,211.15 is: 109,320.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,453.30 : 193,842.57 = 79,211.15 : x
  2. Step 2: Convert to fraction form
    140,453.30/193,842.57 = 79,211.15/x
  3. Step 3: Cross multiply
    140,453.30x = 193,842.57 × 79,211.15
  4. Step 4: Simplify right side
    140,453.30x = 15,354,492,888.66
  5. Step 5: Solve for x
    x = 15,354,492,888.66/140,453.30
  6. Step 6: Final answer
    x = 109,320.98

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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.