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Finding the Fourth Proportional to 98,542.80, 147,814.20 and 43,246.80

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Solution

The fourth proportional to 98,542.80, 147,814.20 and 43,246.80 is: 64,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,542.80 : 147,814.20 = 43,246.80 : x
  2. Step 2: Convert to fraction form
    98,542.80/147,814.20 = 43,246.80/x
  3. Step 3: Cross multiply
    98,542.80x = 147,814.20 × 43,246.80
  4. Step 4: Simplify right side
    98,542.80x = 6,392,491,144.56
  5. Step 5: Solve for x
    x = 6,392,491,144.56/98,542.80
  6. Step 6: Final answer
    x = 64,870.20

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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.