Home / 98,331.26-147,502.43-28,208.75

Finding the Fourth Proportional to 98,331.26, 147,502.43 and 28,208.75

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Solution

The fourth proportional to 98,331.26, 147,502.43 and 28,208.75 is: 42,314.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,331.26 : 147,502.43 = 28,208.75 : x
  2. Step 2: Convert to fraction form
    98,331.26/147,502.43 = 28,208.75/x
  3. Step 3: Cross multiply
    98,331.26x = 147,502.43 × 28,208.75
  4. Step 4: Simplify right side
    98,331.26x = 4,160,859,031.22
  5. Step 5: Solve for x
    x = 4,160,859,031.22/98,331.26
  6. Step 6: Final answer
    x = 42,314.71

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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.