Home / 140,888.49-194,446.02-87,190.80

Finding the Fourth Proportional to 140,888.49, 194,446.02 and 87,190.80

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Solution

The fourth proportional to 140,888.49, 194,446.02 and 87,190.80 is: 120,335.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,888.49 : 194,446.02 = 87,190.80 : x
  2. Step 2: Convert to fraction form
    140,888.49/194,446.02 = 87,190.80/x
  3. Step 3: Cross multiply
    140,888.49x = 194,446.02 × 87,190.80
  4. Step 4: Simplify right side
    140,888.49x = 16,953,904,040.62
  5. Step 5: Solve for x
    x = 16,953,904,040.62/140,888.49
  6. Step 6: Final answer
    x = 120,335.62

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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.