Home / 105,318.40-158,040.04-38,805.22

Finding the Fourth Proportional to 105,318.40, 158,040.04 and 38,805.22

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Solution

The fourth proportional to 105,318.40, 158,040.04 and 38,805.22 is: 58,230.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,318.40 : 158,040.04 = 38,805.22 : x
  2. Step 2: Convert to fraction form
    105,318.40/158,040.04 = 38,805.22/x
  3. Step 3: Cross multiply
    105,318.40x = 158,040.04 × 38,805.22
  4. Step 4: Simplify right side
    105,318.40x = 6,132,778,521.01
  5. Step 5: Solve for x
    x = 6,132,778,521.01/105,318.40
  6. Step 6: Final answer
    x = 58,230.84

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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.