Home / 113,839.20-170,758.80-76,417.20

Finding the Fourth Proportional to 113,839.20, 170,758.80 and 76,417.20

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Solution

The fourth proportional to 113,839.20, 170,758.80 and 76,417.20 is: 114,625.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,839.20 : 170,758.80 = 76,417.20 : x
  2. Step 2: Convert to fraction form
    113,839.20/170,758.80 = 76,417.20/x
  3. Step 3: Cross multiply
    113,839.20x = 170,758.80 × 76,417.20
  4. Step 4: Simplify right side
    113,839.20x = 13,048,909,371.36
  5. Step 5: Solve for x
    x = 13,048,909,371.36/113,839.20
  6. Step 6: Final answer
    x = 114,625.80

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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.