Home / 98,786.25-148,179.38-28,666.17

Finding the Fourth Proportional to 98,786.25, 148,179.38 and 28,666.17

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Solution

The fourth proportional to 98,786.25, 148,179.38 and 28,666.17 is: 42,999.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,786.25 : 148,179.38 = 28,666.17 : x
  2. Step 2: Convert to fraction form
    98,786.25/148,179.38 = 28,666.17/x
  3. Step 3: Cross multiply
    98,786.25x = 148,179.38 × 28,666.17
  4. Step 4: Simplify right side
    98,786.25x = 4,247,735,154.24
  5. Step 5: Solve for x
    x = 4,247,735,154.24/98,786.25
  6. Step 6: Final answer
    x = 42,999.26

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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.