Home / 113,815.60-170,334.60-99,818.80

Finding the Fourth Proportional to 113,815.60, 170,334.60 and 99,818.80

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Solution

The fourth proportional to 113,815.60, 170,334.60 and 99,818.80 is: 149,387.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,815.60 : 170,334.60 = 99,818.80 : x
  2. Step 2: Convert to fraction form
    113,815.60/170,334.60 = 99,818.80/x
  3. Step 3: Cross multiply
    113,815.60x = 170,334.60 × 99,818.80
  4. Step 4: Simplify right side
    113,815.60x = 17,002,595,370.48
  5. Step 5: Solve for x
    x = 17,002,595,370.48/113,815.60
  6. Step 6: Final answer
    x = 149,387.21

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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.