Home / 119,821.05-165,353.07-66,106.20

Finding the Fourth Proportional to 119,821.05, 165,353.07 and 66,106.20

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Solution

The fourth proportional to 119,821.05, 165,353.07 and 66,106.20 is: 91,226.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,821.05 : 165,353.07 = 66,106.20 : x
  2. Step 2: Convert to fraction form
    119,821.05/165,353.07 = 66,106.20/x
  3. Step 3: Cross multiply
    119,821.05x = 165,353.07 × 66,106.20
  4. Step 4: Simplify right side
    119,821.05x = 10,930,863,116.03
  5. Step 5: Solve for x
    x = 10,930,863,116.03/119,821.05
  6. Step 6: Final answer
    x = 91,226.57

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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.