Home / 119,787.75-165,307.86-66,074.22

Finding the Fourth Proportional to 119,787.75, 165,307.86 and 66,074.22

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Solution

The fourth proportional to 119,787.75, 165,307.86 and 66,074.22 is: 91,182.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,787.75 : 165,307.86 = 66,074.22 : x
  2. Step 2: Convert to fraction form
    119,787.75/165,307.86 = 66,074.22/x
  3. Step 3: Cross multiply
    119,787.75x = 165,307.86 × 66,074.22
  4. Step 4: Simplify right side
    119,787.75x = 10,922,587,909.37
  5. Step 5: Solve for x
    x = 10,922,587,909.37/119,787.75
  6. Step 6: Final answer
    x = 91,182.85

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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.