Home / 120,478.61-166,260.89-66,764.52

Finding the Fourth Proportional to 120,478.61, 166,260.89 and 66,764.52

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Solution

The fourth proportional to 120,478.61, 166,260.89 and 66,764.52 is: 92,135.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,478.61 : 166,260.89 = 66,764.52 : x
  2. Step 2: Convert to fraction form
    120,478.61/166,260.89 = 66,764.52/x
  3. Step 3: Cross multiply
    120,478.61x = 166,260.89 × 66,764.52
  4. Step 4: Simplify right side
    120,478.61x = 11,100,328,682.53
  5. Step 5: Solve for x
    x = 11,100,328,682.53/120,478.61
  6. Step 6: Final answer
    x = 92,135.26

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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.