Home / 140,886.35-194,443.10-87,188.66

Finding the Fourth Proportional to 140,886.35, 194,443.10 and 87,188.66

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Solution

The fourth proportional to 140,886.35, 194,443.10 and 87,188.66 is: 120,332.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,886.35 : 194,443.10 = 87,188.66 : x
  2. Step 2: Convert to fraction form
    140,886.35/194,443.10 = 87,188.66/x
  3. Step 3: Cross multiply
    140,886.35x = 194,443.10 × 87,188.66
  4. Step 4: Simplify right side
    140,886.35x = 16,953,233,335.25
  5. Step 5: Solve for x
    x = 16,953,233,335.25/140,886.35
  6. Step 6: Final answer
    x = 120,332.69

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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.