Home / 113,814.60-170,333.10-99,817.80

Finding the Fourth Proportional to 113,814.60, 170,333.10 and 99,817.80

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Solution

The fourth proportional to 113,814.60, 170,333.10 and 99,817.80 is: 149,385.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,814.60 : 170,333.10 = 99,817.80 : x
  2. Step 2: Convert to fraction form
    113,814.60/170,333.10 = 99,817.80/x
  3. Step 3: Cross multiply
    113,814.60x = 170,333.10 × 99,817.80
  4. Step 4: Simplify right side
    113,814.60x = 17,002,275,309.18
  5. Step 5: Solve for x
    x = 17,002,275,309.18/113,814.60
  6. Step 6: Final answer
    x = 149,385.71

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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.