Home / 119,822.09-165,351.78-66,112.20

Finding the Fourth Proportional to 119,822.09, 165,351.78 and 66,112.20

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Solution

The fourth proportional to 119,822.09, 165,351.78 and 66,112.20 is: 91,233.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,822.09 : 165,351.78 = 66,112.20 : x
  2. Step 2: Convert to fraction form
    119,822.09/165,351.78 = 66,112.20/x
  3. Step 3: Cross multiply
    119,822.09x = 165,351.78 × 66,112.20
  4. Step 4: Simplify right side
    119,822.09x = 10,931,769,949.72
  5. Step 5: Solve for x
    x = 10,931,769,949.72/119,822.09
  6. Step 6: Final answer
    x = 91,233.35

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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.