Home / 120,586.28-166,409.51-66,876.26

Finding the Fourth Proportional to 120,586.28, 166,409.51 and 66,876.26

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Solution

The fourth proportional to 120,586.28, 166,409.51 and 66,876.26 is: 92,289.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,586.28 : 166,409.51 = 66,876.26 : x
  2. Step 2: Convert to fraction form
    120,586.28/166,409.51 = 66,876.26/x
  3. Step 3: Cross multiply
    120,586.28x = 166,409.51 × 66,876.26
  4. Step 4: Simplify right side
    120,586.28x = 11,128,844,490.80
  5. Step 5: Solve for x
    x = 11,128,844,490.80/120,586.28
  6. Step 6: Final answer
    x = 92,289.48

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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.