Home / 126,915.05-175,138.95-69,553.67

Finding the Fourth Proportional to 126,915.05, 175,138.95 and 69,553.67

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Solution

The fourth proportional to 126,915.05, 175,138.95 and 69,553.67 is: 95,981.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,915.05 : 175,138.95 = 69,553.67 : x
  2. Step 2: Convert to fraction form
    126,915.05/175,138.95 = 69,553.67/x
  3. Step 3: Cross multiply
    126,915.05x = 175,138.95 × 69,553.67
  4. Step 4: Simplify right side
    126,915.05x = 12,181,556,732.45
  5. Step 5: Solve for x
    x = 12,181,556,732.45/126,915.05
  6. Step 6: Final answer
    x = 95,981.97

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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.