Home / 120,490.53-166,276.94-66,783.62

Finding the Fourth Proportional to 120,490.53, 166,276.94 and 66,783.62

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Solution

The fourth proportional to 120,490.53, 166,276.94 and 66,783.62 is: 92,161.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,490.53 : 166,276.94 = 66,783.62 : x
  2. Step 2: Convert to fraction form
    120,490.53/166,276.94 = 66,783.62/x
  3. Step 3: Cross multiply
    120,490.53x = 166,276.94 × 66,783.62
  4. Step 4: Simplify right side
    120,490.53x = 11,104,575,641.80
  5. Step 5: Solve for x
    x = 11,104,575,641.80/120,490.53
  6. Step 6: Final answer
    x = 92,161.40

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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.