Home / 98,867.04-136,439.92-54,155.04

Finding the Fourth Proportional to 98,867.04, 136,439.92 and 54,155.04

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Solution

The fourth proportional to 98,867.04, 136,439.92 and 54,155.04 is: 74,735.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,867.04 : 136,439.92 = 54,155.04 : x
  2. Step 2: Convert to fraction form
    98,867.04/136,439.92 = 54,155.04/x
  3. Step 3: Cross multiply
    98,867.04x = 136,439.92 × 54,155.04
  4. Step 4: Simplify right side
    98,867.04x = 7,388,909,325.20
  5. Step 5: Solve for x
    x = 7,388,909,325.20/98,867.04
  6. Step 6: Final answer
    x = 74,735.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.