Home / 98,221.10-147,331.67-28,100.41

Finding the Fourth Proportional to 98,221.10, 147,331.67 and 28,100.41

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Solution

The fourth proportional to 98,221.10, 147,331.67 and 28,100.41 is: 42,150.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,221.10 : 147,331.67 = 28,100.41 : x
  2. Step 2: Convert to fraction form
    98,221.10/147,331.67 = 28,100.41/x
  3. Step 3: Cross multiply
    98,221.10x = 147,331.67 × 28,100.41
  4. Step 4: Simplify right side
    98,221.10x = 4,140,079,824.15
  5. Step 5: Solve for x
    x = 4,140,079,824.15/98,221.10
  6. Step 6: Final answer
    x = 42,150.62

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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.