Home / 112,724.40-168,964.56-73,309.80

Finding the Fourth Proportional to 112,724.40, 168,964.56 and 73,309.80

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Solution

The fourth proportional to 112,724.40, 168,964.56 and 73,309.80 is: 109,885.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,724.40 : 168,964.56 = 73,309.80 : x
  2. Step 2: Convert to fraction form
    112,724.40/168,964.56 = 73,309.80/x
  3. Step 3: Cross multiply
    112,724.40x = 168,964.56 × 73,309.80
  4. Step 4: Simplify right side
    112,724.40x = 12,386,758,100.69
  5. Step 5: Solve for x
    x = 12,386,758,100.69/112,724.40
  6. Step 6: Final answer
    x = 109,885.33

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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.