Home / 115,719.60-173,449.80-65,823.60

Finding the Fourth Proportional to 115,719.60, 173,449.80 and 65,823.60

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Solution

The fourth proportional to 115,719.60, 173,449.80 and 65,823.60 is: 98,661.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,719.60 : 173,449.80 = 65,823.60 : x
  2. Step 2: Convert to fraction form
    115,719.60/173,449.80 = 65,823.60/x
  3. Step 3: Cross multiply
    115,719.60x = 173,449.80 × 65,823.60
  4. Step 4: Simplify right side
    115,719.60x = 11,417,090,255.28
  5. Step 5: Solve for x
    x = 11,417,090,255.28/115,719.60
  6. Step 6: Final answer
    x = 98,661.68

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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.