Home / 105,581.28-158,530.06-91,393.80

Finding the Fourth Proportional to 105,581.28, 158,530.06 and 91,393.80

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Solution

The fourth proportional to 105,581.28, 158,530.06 and 91,393.80 is: 137,227.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,581.28 : 158,530.06 = 91,393.80 : x
  2. Step 2: Convert to fraction form
    105,581.28/158,530.06 = 91,393.80/x
  3. Step 3: Cross multiply
    105,581.28x = 158,530.06 × 91,393.80
  4. Step 4: Simplify right side
    105,581.28x = 14,488,664,597.63
  5. Step 5: Solve for x
    x = 14,488,664,597.63/105,581.28
  6. Step 6: Final answer
    x = 137,227.59

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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.