Home / 140,062.34-193,292.87-78,827.66

Finding the Fourth Proportional to 140,062.34, 193,292.87 and 78,827.66

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Solution

The fourth proportional to 140,062.34, 193,292.87 and 78,827.66 is: 108,786.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,062.34 : 193,292.87 = 78,827.66 : x
  2. Step 2: Convert to fraction form
    140,062.34/193,292.87 = 78,827.66/x
  3. Step 3: Cross multiply
    140,062.34x = 193,292.87 × 78,827.66
  4. Step 4: Simplify right side
    140,062.34x = 15,236,824,636.78
  5. Step 5: Solve for x
    x = 15,236,824,636.78/140,062.34
  6. Step 6: Final answer
    x = 108,786.02

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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.