Home / 119,835.54-165,373.95-66,122.55

Finding the Fourth Proportional to 119,835.54, 165,373.95 and 66,122.55

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Solution

The fourth proportional to 119,835.54, 165,373.95 and 66,122.55 is: 91,249.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,835.54 : 165,373.95 = 66,122.55 : x
  2. Step 2: Convert to fraction form
    119,835.54/165,373.95 = 66,122.55/x
  3. Step 3: Cross multiply
    119,835.54x = 165,373.95 × 66,122.55
  4. Step 4: Simplify right side
    119,835.54x = 10,934,947,277.57
  5. Step 5: Solve for x
    x = 10,934,947,277.57/119,835.54
  6. Step 6: Final answer
    x = 91,249.62

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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.