Home / 98,934.92-148,451.58-78,964.88

Finding the Fourth Proportional to 98,934.92, 148,451.58 and 78,964.88

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Solution

The fourth proportional to 98,934.92, 148,451.58 and 78,964.88 is: 118,486.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,934.92 : 148,451.58 = 78,964.88 : x
  2. Step 2: Convert to fraction form
    98,934.92/148,451.58 = 78,964.88/x
  3. Step 3: Cross multiply
    98,934.92x = 148,451.58 × 78,964.88
  4. Step 4: Simplify right side
    98,934.92x = 11,722,460,458.25
  5. Step 5: Solve for x
    x = 11,722,460,458.25/98,934.92
  6. Step 6: Final answer
    x = 118,486.59

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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.