Home / 113,849.20-170,773.80-78,857.20

Finding the Fourth Proportional to 113,849.20, 170,773.80 and 78,857.20

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Solution

The fourth proportional to 113,849.20, 170,773.80 and 78,857.20 is: 118,285.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,849.20 : 170,773.80 = 78,857.20 : x
  2. Step 2: Convert to fraction form
    113,849.20/170,773.80 = 78,857.20/x
  3. Step 3: Cross multiply
    113,849.20x = 170,773.80 × 78,857.20
  4. Step 4: Simplify right side
    113,849.20x = 13,466,743,701.36
  5. Step 5: Solve for x
    x = 13,466,743,701.36/113,849.20
  6. Step 6: Final answer
    x = 118,285.80

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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.