Home / 105,408.92-158,171.70-43,123.16

Finding the Fourth Proportional to 105,408.92, 158,171.70 and 43,123.16

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Solution

The fourth proportional to 105,408.92, 158,171.70 and 43,123.16 is: 64,708.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,408.92 : 158,171.70 = 43,123.16 : x
  2. Step 2: Convert to fraction form
    105,408.92/158,171.70 = 43,123.16/x
  3. Step 3: Cross multiply
    105,408.92x = 158,171.70 × 43,123.16
  4. Step 4: Simplify right side
    105,408.92x = 6,820,863,526.57
  5. Step 5: Solve for x
    x = 6,820,863,526.57/105,408.92
  6. Step 6: Final answer
    x = 64,708.60

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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.