Home / 98,968.80-148,485.78-65,819.28

Finding the Fourth Proportional to 98,968.80, 148,485.78 and 65,819.28

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Solution

The fourth proportional to 98,968.80, 148,485.78 and 65,819.28 is: 98,750.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,968.80 : 148,485.78 = 65,819.28 : x
  2. Step 2: Convert to fraction form
    98,968.80/148,485.78 = 65,819.28/x
  3. Step 3: Cross multiply
    98,968.80x = 148,485.78 × 65,819.28
  4. Step 4: Simplify right side
    98,968.80x = 9,773,227,129.84
  5. Step 5: Solve for x
    x = 9,773,227,129.84/98,968.80
  6. Step 6: Final answer
    x = 98,750.59

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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.