Home / 98,921.28-148,387.05-28,806.06

Finding the Fourth Proportional to 98,921.28, 148,387.05 and 28,806.06

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Solution

The fourth proportional to 98,921.28, 148,387.05 and 28,806.06 is: 43,210.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,921.28 : 148,387.05 = 28,806.06 : x
  2. Step 2: Convert to fraction form
    98,921.28/148,387.05 = 28,806.06/x
  3. Step 3: Cross multiply
    98,921.28x = 148,387.05 × 28,806.06
  4. Step 4: Simplify right side
    98,921.28x = 4,274,446,265.52
  5. Step 5: Solve for x
    x = 4,274,446,265.52/98,921.28
  6. Step 6: Final answer
    x = 43,210.58

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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.