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Finding the Fourth Proportional to 119,703.75, 165,191.67 and 65,987.58

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Solution

The fourth proportional to 119,703.75, 165,191.67 and 65,987.58 is: 91,063.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,703.75 : 165,191.67 = 65,987.58 : x
  2. Step 2: Convert to fraction form
    119,703.75/165,191.67 = 65,987.58/x
  3. Step 3: Cross multiply
    119,703.75x = 165,191.67 × 65,987.58
  4. Step 4: Simplify right side
    119,703.75x = 10,900,599,158.93
  5. Step 5: Solve for x
    x = 10,900,599,158.93/119,703.75
  6. Step 6: Final answer
    x = 91,063.14

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1.5x scale

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.