Home / 119,818.80-165,349.96-66,103.94

Finding the Fourth Proportional to 119,818.80, 165,349.96 and 66,103.94

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Solution

The fourth proportional to 119,818.80, 165,349.96 and 66,103.94 is: 91,223.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,818.80 : 165,349.96 = 66,103.94 : x
  2. Step 2: Convert to fraction form
    119,818.80/165,349.96 = 66,103.94/x
  3. Step 3: Cross multiply
    119,818.80x = 165,349.96 × 66,103.94
  4. Step 4: Simplify right side
    119,818.80x = 10,930,284,082.96
  5. Step 5: Solve for x
    x = 10,930,284,082.96/119,818.80
  6. Step 6: Final answer
    x = 91,223.45

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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.