Home / 120,252.12-165,948.12-66,539.40

Finding the Fourth Proportional to 120,252.12, 165,948.12 and 66,539.40

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Solution

The fourth proportional to 120,252.12, 165,948.12 and 66,539.40 is: 91,824.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,252.12 : 165,948.12 = 66,539.40 : x
  2. Step 2: Convert to fraction form
    120,252.12/165,948.12 = 66,539.40/x
  3. Step 3: Cross multiply
    120,252.12x = 165,948.12 × 66,539.40
  4. Step 4: Simplify right side
    120,252.12x = 11,042,088,335.93
  5. Step 5: Solve for x
    x = 11,042,088,335.93/120,252.12
  6. Step 6: Final answer
    x = 91,824.48

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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.