Home / 187,564.12-281,261.09-80,897.67

Finding the Fourth Proportional to 187,564.12, 281,261.09 and 80,897.67

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Solution

The fourth proportional to 187,564.12, 281,261.09 and 80,897.67 is: 121,309.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,564.12 : 281,261.09 = 80,897.67 : x
  2. Step 2: Convert to fraction form
    187,564.12/281,261.09 = 80,897.67/x
  3. Step 3: Cross multiply
    187,564.12x = 281,261.09 × 80,897.67
  4. Step 4: Simplify right side
    187,564.12x = 22,753,366,842.66
  5. Step 5: Solve for x
    x = 22,753,366,842.66/187,564.12
  6. Step 6: Final answer
    x = 121,309.81

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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.