Home / 120,066.42-165,686.23-66,350.28

Finding the Fourth Proportional to 120,066.42, 165,686.23 and 66,350.28

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Solution

The fourth proportional to 120,066.42, 165,686.23 and 66,350.28 is: 91,560.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,066.42 : 165,686.23 = 66,350.28 : x
  2. Step 2: Convert to fraction form
    120,066.42/165,686.23 = 66,350.28/x
  3. Step 3: Cross multiply
    120,066.42x = 165,686.23 × 66,350.28
  4. Step 4: Simplify right side
    120,066.42x = 10,993,327,752.64
  5. Step 5: Solve for x
    x = 10,993,327,752.64/120,066.42
  6. Step 6: Final answer
    x = 91,560.39

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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.