Home / 119,739.60-165,247.92-66,024.40

Finding the Fourth Proportional to 119,739.60, 165,247.92 and 66,024.40

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Solution

The fourth proportional to 119,739.60, 165,247.92 and 66,024.40 is: 91,117.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,739.60 : 165,247.92 = 66,024.40 : x
  2. Step 2: Convert to fraction form
    119,739.60/165,247.92 = 66,024.40/x
  3. Step 3: Cross multiply
    119,739.60x = 165,247.92 × 66,024.40
  4. Step 4: Simplify right side
    119,739.60x = 10,910,394,769.25
  5. Step 5: Solve for x
    x = 10,910,394,769.25/119,739.60
  6. Step 6: Final answer
    x = 91,117.68

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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.