Home / 105,408.56-158,108.88-26,521.76

Finding the Fourth Proportional to 105,408.56, 158,108.88 and 26,521.76

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Solution

The fourth proportional to 105,408.56, 158,108.88 and 26,521.76 is: 39,781.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,408.56 : 158,108.88 = 26,521.76 : x
  2. Step 2: Convert to fraction form
    105,408.56/158,108.88 = 26,521.76/x
  3. Step 3: Cross multiply
    105,408.56x = 158,108.88 × 26,521.76
  4. Step 4: Simplify right side
    105,408.56x = 4,193,325,769.23
  5. Step 5: Solve for x
    x = 4,193,325,769.23/105,408.56
  6. Step 6: Final answer
    x = 39,781.64

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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.