Home / 98,729.40-147,996.90-48,817.20

Finding the Fourth Proportional to 98,729.40, 147,996.90 and 48,817.20

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Solution

The fourth proportional to 98,729.40, 147,996.90 and 48,817.20 is: 73,177.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,729.40 : 147,996.90 = 48,817.20 : x
  2. Step 2: Convert to fraction form
    98,729.40/147,996.90 = 48,817.20/x
  3. Step 3: Cross multiply
    98,729.40x = 147,996.90 × 48,817.20
  4. Step 4: Simplify right side
    98,729.40x = 7,224,794,266.68
  5. Step 5: Solve for x
    x = 7,224,794,266.68/98,729.40
  6. Step 6: Final answer
    x = 73,177.74

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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.