Home / 140,171.15-193,433.11-76,510.01

Finding the Fourth Proportional to 140,171.15, 193,433.11 and 76,510.01

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Solution

The fourth proportional to 140,171.15, 193,433.11 and 76,510.01 is: 105,582.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,171.15 : 193,433.11 = 76,510.01 : x
  2. Step 2: Convert to fraction form
    140,171.15/193,433.11 = 76,510.01/x
  3. Step 3: Cross multiply
    140,171.15x = 193,433.11 × 76,510.01
  4. Step 4: Simplify right side
    140,171.15x = 14,799,568,797.88
  5. Step 5: Solve for x
    x = 14,799,568,797.88/140,171.15
  6. Step 6: Final answer
    x = 105,582.13

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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.