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Finding the Fourth Proportional to 119,833.62, 165,370.98 and 66,118.67

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Solution

The fourth proportional to 119,833.62, 165,370.98 and 66,118.67 is: 91,244.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,833.62 : 165,370.98 = 66,118.67 : x
  2. Step 2: Convert to fraction form
    119,833.62/165,370.98 = 66,118.67/x
  3. Step 3: Cross multiply
    119,833.62x = 165,370.98 × 66,118.67
  4. Step 4: Simplify right side
    119,833.62x = 10,934,109,254.20
  5. Step 5: Solve for x
    x = 10,934,109,254.20/119,833.62
  6. Step 6: Final answer
    x = 91,244.09

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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.