Home / 189,225.18-261,033.03-117,577.98

Finding the Fourth Proportional to 189,225.18, 261,033.03 and 117,577.98

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Solution

The fourth proportional to 189,225.18, 261,033.03 and 117,577.98 is: 162,196.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,225.18 : 261,033.03 = 117,577.98 : x
  2. Step 2: Convert to fraction form
    189,225.18/261,033.03 = 117,577.98/x
  3. Step 3: Cross multiply
    189,225.18x = 261,033.03 × 117,577.98
  4. Step 4: Simplify right side
    189,225.18x = 30,691,736,380.68
  5. Step 5: Solve for x
    x = 30,691,736,380.68/189,225.18
  6. Step 6: Final answer
    x = 162,196.89

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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.