Home / 119,778.52-165,285.18-66,065.56

Finding the Fourth Proportional to 119,778.52, 165,285.18 and 66,065.56

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Solution

The fourth proportional to 119,778.52, 165,285.18 and 66,065.56 is: 91,165.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,778.52 : 165,285.18 = 66,065.56 : x
  2. Step 2: Convert to fraction form
    119,778.52/165,285.18 = 66,065.56/x
  3. Step 3: Cross multiply
    119,778.52x = 165,285.18 × 66,065.56
  4. Step 4: Simplify right side
    119,778.52x = 10,919,657,976.40
  5. Step 5: Solve for x
    x = 10,919,657,976.40/119,778.52
  6. Step 6: Final answer
    x = 91,165.41

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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.