Home / 120,494.04-166,281.76-66,787.12

Finding the Fourth Proportional to 120,494.04, 166,281.76 and 66,787.12

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Solution

The fourth proportional to 120,494.04, 166,281.76 and 66,787.12 is: 92,166.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,494.04 : 166,281.76 = 66,787.12 : x
  2. Step 2: Convert to fraction form
    120,494.04/166,281.76 = 66,787.12/x
  3. Step 3: Cross multiply
    120,494.04x = 166,281.76 × 66,787.12
  4. Step 4: Simplify right side
    120,494.04x = 11,105,479,858.93
  5. Step 5: Solve for x
    x = 11,105,479,858.93/120,494.04
  6. Step 6: Final answer
    x = 92,166.22

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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.