Home / 140,775.06-194,195.93-87,042.90

Finding the Fourth Proportional to 140,775.06, 194,195.93 and 87,042.90

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Solution

The fourth proportional to 140,775.06, 194,195.93 and 87,042.90 is: 120,073.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,775.06 : 194,195.93 = 87,042.90 : x
  2. Step 2: Convert to fraction form
    140,775.06/194,195.93 = 87,042.90/x
  3. Step 3: Cross multiply
    140,775.06x = 194,195.93 × 87,042.90
  4. Step 4: Simplify right side
    140,775.06x = 16,903,376,915.40
  5. Step 5: Solve for x
    x = 16,903,376,915.40/140,775.06
  6. Step 6: Final answer
    x = 120,073.66

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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.