Home / 113,619.65-156,788.07-62,629.75

Finding the Fourth Proportional to 113,619.65, 156,788.07 and 62,629.75

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Solution

The fourth proportional to 113,619.65, 156,788.07 and 62,629.75 is: 86,425.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,619.65 : 156,788.07 = 62,629.75 : x
  2. Step 2: Convert to fraction form
    113,619.65/156,788.07 = 62,629.75/x
  3. Step 3: Cross multiply
    113,619.65x = 156,788.07 × 62,629.75
  4. Step 4: Simplify right side
    113,619.65x = 9,819,597,627.08
  5. Step 5: Solve for x
    x = 9,819,597,627.08/113,619.65
  6. Step 6: Final answer
    x = 86,425.17

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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.