Home / 113,386.32-169,882.86-68,919.72

Finding the Fourth Proportional to 113,386.32, 169,882.86 and 68,919.72

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Solution

The fourth proportional to 113,386.32, 169,882.86 and 68,919.72 is: 103,260.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,386.32 : 169,882.86 = 68,919.72 : x
  2. Step 2: Convert to fraction form
    113,386.32/169,882.86 = 68,919.72/x
  3. Step 3: Cross multiply
    113,386.32x = 169,882.86 × 68,919.72
  4. Step 4: Simplify right side
    113,386.32x = 11,708,279,144.00
  5. Step 5: Solve for x
    x = 11,708,279,144.00/113,386.32
  6. Step 6: Final answer
    x = 103,260.07

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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.