Home / 98,999.36-148,469.04-83,209.20

Finding the Fourth Proportional to 98,999.36, 148,469.04 and 83,209.20

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Solution

The fourth proportional to 98,999.36, 148,469.04 and 83,209.20 is: 124,788.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,999.36 : 148,469.04 = 83,209.20 : x
  2. Step 2: Convert to fraction form
    98,999.36/148,469.04 = 83,209.20/x
  3. Step 3: Cross multiply
    98,999.36x = 148,469.04 × 83,209.20
  4. Step 4: Simplify right side
    98,999.36x = 12,353,990,043.17
  5. Step 5: Solve for x
    x = 12,353,990,043.17/98,999.36
  6. Step 6: Final answer
    x = 124,788.58

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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.