Home / 113,461.28-169,717.86-79,724.92

Finding the Fourth Proportional to 113,461.28, 169,717.86 and 79,724.92

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Solution

The fourth proportional to 113,461.28, 169,717.86 and 79,724.92 is: 119,254.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,461.28 : 169,717.86 = 79,724.92 : x
  2. Step 2: Convert to fraction form
    113,461.28/169,717.86 = 79,724.92/x
  3. Step 3: Cross multiply
    113,461.28x = 169,717.86 × 79,724.92
  4. Step 4: Simplify right side
    113,461.28x = 13,530,743,223.95
  5. Step 5: Solve for x
    x = 13,530,743,223.95/113,461.28
  6. Step 6: Final answer
    x = 119,254.28

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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.