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Finding the Fourth Proportional to 158,353.44, 218,527.84 and 86,733.44

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Solution

The fourth proportional to 158,353.44, 218,527.84 and 86,733.44 is: 119,692.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,353.44 : 218,527.84 = 86,733.44 : x
  2. Step 2: Convert to fraction form
    158,353.44/218,527.84 = 86,733.44/x
  3. Step 3: Cross multiply
    158,353.44x = 218,527.84 × 86,733.44
  4. Step 4: Simplify right side
    158,353.44x = 18,953,671,298.97
  5. Step 5: Solve for x
    x = 18,953,671,298.97/158,353.44
  6. Step 6: Final answer
    x = 119,692.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.