Home / 140,309.66-193,565.82-85,864.46

Finding the Fourth Proportional to 140,309.66, 193,565.82 and 85,864.46

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Solution

The fourth proportional to 140,309.66, 193,565.82 and 85,864.46 is: 118,455.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,309.66 : 193,565.82 = 85,864.46 : x
  2. Step 2: Convert to fraction form
    140,309.66/193,565.82 = 85,864.46/x
  3. Step 3: Cross multiply
    140,309.66x = 193,565.82 × 85,864.46
  4. Step 4: Simplify right side
    140,309.66x = 16,620,423,962.92
  5. Step 5: Solve for x
    x = 16,620,423,962.92/140,309.66
  6. Step 6: Final answer
    x = 118,455.31

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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.