Home / 140,302.45-193,610.16-76,627.95

Finding the Fourth Proportional to 140,302.45, 193,610.16 and 76,627.95

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Solution

The fourth proportional to 140,302.45, 193,610.16 and 76,627.95 is: 105,742.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,302.45 : 193,610.16 = 76,627.95 : x
  2. Step 2: Convert to fraction form
    140,302.45/193,610.16 = 76,627.95/x
  3. Step 3: Cross multiply
    140,302.45x = 193,610.16 × 76,627.95
  4. Step 4: Simplify right side
    140,302.45x = 14,835,948,933.93
  5. Step 5: Solve for x
    x = 14,835,948,933.93/140,302.45
  6. Step 6: Final answer
    x = 105,742.62

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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.