Home / 166,615.11-229,928.35-90,134.19

Finding the Fourth Proportional to 166,615.11, 229,928.35 and 90,134.19

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Solution

The fourth proportional to 166,615.11, 229,928.35 and 90,134.19 is: 124,384.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,615.11 : 229,928.35 = 90,134.19 : x
  2. Step 2: Convert to fraction form
    166,615.11/229,928.35 = 90,134.19/x
  3. Step 3: Cross multiply
    166,615.11x = 229,928.35 × 90,134.19
  4. Step 4: Simplify right side
    166,615.11x = 20,724,404,894.89
  5. Step 5: Solve for x
    x = 20,724,404,894.89/166,615.11
  6. Step 6: Final answer
    x = 124,384.90

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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.