Home / 119,728.12-165,226-66,015.04

Finding the Fourth Proportional to 119,728.12, 165,226 and 66,015.04

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Solution

The fourth proportional to 119,728.12, 165,226 and 66,015.04 is: 91,101.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,728.12 : 165,226 = 66,015.04 : x
  2. Step 2: Convert to fraction form
    119,728.12/165,226 = 66,015.04/x
  3. Step 3: Cross multiply
    119,728.12x = 165,226 × 66,015.04
  4. Step 4: Simplify right side
    119,728.12x = 10,907,400,999.04
  5. Step 5: Solve for x
    x = 10,907,400,999.04/119,728.12
  6. Step 6: Final answer
    x = 91,101.41

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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.