Home / 113,619.78-156,788.25-62,629.88

Finding the Fourth Proportional to 113,619.78, 156,788.25 and 62,629.88

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Solution

The fourth proportional to 113,619.78, 156,788.25 and 62,629.88 is: 86,425.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,619.78 : 156,788.25 = 62,629.88 : x
  2. Step 2: Convert to fraction form
    113,619.78/156,788.25 = 62,629.88/x
  3. Step 3: Cross multiply
    113,619.78x = 156,788.25 × 62,629.88
  4. Step 4: Simplify right side
    113,619.78x = 9,819,628,264.11
  5. Step 5: Solve for x
    x = 9,819,628,264.11/113,619.78
  6. Step 6: Final answer
    x = 86,425.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.