Home / 98,278.11-147,391.65-28,141.02

Finding the Fourth Proportional to 98,278.11, 147,391.65 and 28,141.02

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Solution

The fourth proportional to 98,278.11, 147,391.65 and 28,141.02 is: 42,204.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,278.11 : 147,391.65 = 28,141.02 : x
  2. Step 2: Convert to fraction form
    98,278.11/147,391.65 = 28,141.02/x
  3. Step 3: Cross multiply
    98,278.11x = 147,391.65 × 28,141.02
  4. Step 4: Simplify right side
    98,278.11x = 4,147,751,370.48
  5. Step 5: Solve for x
    x = 4,147,751,370.48/98,278.11
  6. Step 6: Final answer
    x = 42,204.22

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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.