Home / 121,435.96-182,215.92-81,910.18

Finding the Fourth Proportional to 121,435.96, 182,215.92 and 81,910.18

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Solution

The fourth proportional to 121,435.96, 182,215.92 and 81,910.18 is: 122,907.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,435.96 : 182,215.92 = 81,910.18 : x
  2. Step 2: Convert to fraction form
    121,435.96/182,215.92 = 81,910.18/x
  3. Step 3: Cross multiply
    121,435.96x = 182,215.92 × 81,910.18
  4. Step 4: Simplify right side
    121,435.96x = 14,925,338,806.07
  5. Step 5: Solve for x
    x = 14,925,338,806.07/121,435.96
  6. Step 6: Final answer
    x = 122,907.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.