Home / 117,112.24-161,615.76-65,429.44

Finding the Fourth Proportional to 117,112.24, 161,615.76 and 65,429.44

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Solution

The fourth proportional to 117,112.24, 161,615.76 and 65,429.44 is: 90,293.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,112.24 : 161,615.76 = 65,429.44 : x
  2. Step 2: Convert to fraction form
    117,112.24/161,615.76 = 65,429.44/x
  3. Step 3: Cross multiply
    117,112.24x = 161,615.76 × 65,429.44
  4. Step 4: Simplify right side
    117,112.24x = 10,574,428,671.97
  5. Step 5: Solve for x
    x = 10,574,428,671.97/117,112.24
  6. Step 6: Final answer
    x = 90,293.11

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1.5x scale

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.