Home / 119,766.40-165,288.76-68,786.16

Finding the Fourth Proportional to 119,766.40, 165,288.76 and 68,786.16

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Solution

The fourth proportional to 119,766.40, 165,288.76 and 68,786.16 is: 94,931.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,766.40 : 165,288.76 = 68,786.16 : x
  2. Step 2: Convert to fraction form
    119,766.40/165,288.76 = 68,786.16/x
  3. Step 3: Cross multiply
    119,766.40x = 165,288.76 × 68,786.16
  4. Step 4: Simplify right side
    119,766.40x = 11,369,579,091.56
  5. Step 5: Solve for x
    x = 11,369,579,091.56/119,766.40
  6. Step 6: Final answer
    x = 94,931.29

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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.