Home / 105,429.06-158,121.72-38,851.92

Finding the Fourth Proportional to 105,429.06, 158,121.72 and 38,851.92

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Solution

The fourth proportional to 105,429.06, 158,121.72 and 38,851.92 is: 58,269.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,429.06 : 158,121.72 = 38,851.92 : x
  2. Step 2: Convert to fraction form
    105,429.06/158,121.72 = 38,851.92/x
  3. Step 3: Cross multiply
    105,429.06x = 158,121.72 × 38,851.92
  4. Step 4: Simplify right side
    105,429.06x = 6,143,332,415.70
  5. Step 5: Solve for x
    x = 6,143,332,415.70/105,429.06
  6. Step 6: Final answer
    x = 58,269.82

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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.