Home / 120,012.74-165,594.57-72,269.18

Finding the Fourth Proportional to 120,012.74, 165,594.57 and 72,269.18

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Solution

The fourth proportional to 120,012.74, 165,594.57 and 72,269.18 is: 99,717.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,012.74 : 165,594.57 = 72,269.18 : x
  2. Step 2: Convert to fraction form
    120,012.74/165,594.57 = 72,269.18/x
  3. Step 3: Cross multiply
    120,012.74x = 165,594.57 × 72,269.18
  4. Step 4: Simplify right side
    120,012.74x = 11,967,383,786.35
  5. Step 5: Solve for x
    x = 11,967,383,786.35/120,012.74
  6. Step 6: Final answer
    x = 99,717.61

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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.