Home / 140,380.16-193,725.12-76,717.94

Finding the Fourth Proportional to 140,380.16, 193,725.12 and 76,717.94

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Solution

The fourth proportional to 140,380.16, 193,725.12 and 76,717.94 is: 105,871.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,380.16 : 193,725.12 = 76,717.94 : x
  2. Step 2: Convert to fraction form
    140,380.16/193,725.12 = 76,717.94/x
  3. Step 3: Cross multiply
    140,380.16x = 193,725.12 × 76,717.94
  4. Step 4: Simplify right side
    140,380.16x = 14,862,192,132.65
  5. Step 5: Solve for x
    x = 14,862,192,132.65/140,380.16
  6. Step 6: Final answer
    x = 105,871.03

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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.