Home / 119,686.41-165,170.75-65,972.07

Finding the Fourth Proportional to 119,686.41, 165,170.75 and 65,972.07

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Solution

The fourth proportional to 119,686.41, 165,170.75 and 65,972.07 is: 91,043.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,686.41 : 165,170.75 = 65,972.07 : x
  2. Step 2: Convert to fraction form
    119,686.41/165,170.75 = 65,972.07/x
  3. Step 3: Cross multiply
    119,686.41x = 165,170.75 × 65,972.07
  4. Step 4: Simplify right side
    119,686.41x = 10,896,655,951.09
  5. Step 5: Solve for x
    x = 10,896,655,951.09/119,686.41
  6. Step 6: Final answer
    x = 91,043.39

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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.