Home / 105,406.74-158,131.28-38,847.22

Finding the Fourth Proportional to 105,406.74, 158,131.28 and 38,847.22

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Solution

The fourth proportional to 105,406.74, 158,131.28 and 38,847.22 is: 58,278.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,406.74 : 158,131.28 = 38,847.22 : x
  2. Step 2: Convert to fraction form
    105,406.74/158,131.28 = 38,847.22/x
  3. Step 3: Cross multiply
    105,406.74x = 158,131.28 × 38,847.22
  4. Step 4: Simplify right side
    105,406.74x = 6,142,960,623.04
  5. Step 5: Solve for x
    x = 6,142,960,623.04/105,406.74
  6. Step 6: Final answer
    x = 58,278.63

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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.