Home / 105,405.74-158,129.78-38,846.22

Finding the Fourth Proportional to 105,405.74, 158,129.78 and 38,846.22

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Solution

The fourth proportional to 105,405.74, 158,129.78 and 38,846.22 is: 58,277.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,405.74 : 158,129.78 = 38,846.22 : x
  2. Step 2: Convert to fraction form
    105,405.74/158,129.78 = 38,846.22/x
  3. Step 3: Cross multiply
    105,405.74x = 158,129.78 × 38,846.22
  4. Step 4: Simplify right side
    105,405.74x = 6,142,744,222.43
  5. Step 5: Solve for x
    x = 6,142,744,222.43/105,405.74
  6. Step 6: Final answer
    x = 58,277.13

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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.