Home / 120,074.08-165,701.46-66,362.20

Finding the Fourth Proportional to 120,074.08, 165,701.46 and 66,362.20

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Solution

The fourth proportional to 120,074.08, 165,701.46 and 66,362.20 is: 91,579.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,074.08 : 165,701.46 = 66,362.20 : x
  2. Step 2: Convert to fraction form
    120,074.08/165,701.46 = 66,362.20/x
  3. Step 3: Cross multiply
    120,074.08x = 165,701.46 × 66,362.20
  4. Step 4: Simplify right side
    120,074.08x = 10,996,313,428.81
  5. Step 5: Solve for x
    x = 10,996,313,428.81/120,074.08
  6. Step 6: Final answer
    x = 91,579.41

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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.