Home / 105,396.76-158,157.43-38,883.61

Finding the Fourth Proportional to 105,396.76, 158,157.43 and 38,883.61

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Solution

The fourth proportional to 105,396.76, 158,157.43 and 38,883.61 is: 58,348.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,396.76 : 158,157.43 = 38,883.61 : x
  2. Step 2: Convert to fraction form
    105,396.76/158,157.43 = 38,883.61/x
  3. Step 3: Cross multiply
    105,396.76x = 158,157.43 × 38,883.61
  4. Step 4: Simplify right side
    105,396.76x = 6,149,731,927.21
  5. Step 5: Solve for x
    x = 6,149,731,927.21/105,396.76
  6. Step 6: Final answer
    x = 58,348.40

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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.