Home / 120,127.07-165,767.22-66,404.84

Finding the Fourth Proportional to 120,127.07, 165,767.22 and 66,404.84

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Solution

The fourth proportional to 120,127.07, 165,767.22 and 66,404.84 is: 91,634.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,127.07 : 165,767.22 = 66,404.84 : x
  2. Step 2: Convert to fraction form
    120,127.07/165,767.22 = 66,404.84/x
  3. Step 3: Cross multiply
    120,127.07x = 165,767.22 × 66,404.84
  4. Step 4: Simplify right side
    120,127.07x = 11,007,744,892.51
  5. Step 5: Solve for x
    x = 11,007,744,892.51/120,127.07
  6. Step 6: Final answer
    x = 91,634.18

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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.