Home / 140,306.30-193,626.94-76,648.20

Finding the Fourth Proportional to 140,306.30, 193,626.94 and 76,648.20

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Solution

The fourth proportional to 140,306.30, 193,626.94 and 76,648.20 is: 105,776.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,306.30 : 193,626.94 = 76,648.20 : x
  2. Step 2: Convert to fraction form
    140,306.30/193,626.94 = 76,648.20/x
  3. Step 3: Cross multiply
    140,306.30x = 193,626.94 × 76,648.20
  4. Step 4: Simplify right side
    140,306.30x = 14,841,156,422.51
  5. Step 5: Solve for x
    x = 14,841,156,422.51/140,306.30
  6. Step 6: Final answer
    x = 105,776.84

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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.