Home / 98,750.10-148,121.82-39,569.88

Finding the Fourth Proportional to 98,750.10, 148,121.82 and 39,569.88

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Solution

The fourth proportional to 98,750.10, 148,121.82 and 39,569.88 is: 59,353.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,750.10 : 148,121.82 = 39,569.88 : x
  2. Step 2: Convert to fraction form
    98,750.10/148,121.82 = 39,569.88/x
  3. Step 3: Cross multiply
    98,750.10x = 148,121.82 × 39,569.88
  4. Step 4: Simplify right side
    98,750.10x = 5,861,162,642.78
  5. Step 5: Solve for x
    x = 5,861,162,642.78/98,750.10
  6. Step 6: Final answer
    x = 59,353.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.