Home / 159,942.88-220,722.96-88,322.80

Finding the Fourth Proportional to 159,942.88, 220,722.96 and 88,322.80

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Solution

The fourth proportional to 159,942.88, 220,722.96 and 88,322.80 is: 121,886.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,942.88 : 220,722.96 = 88,322.80 : x
  2. Step 2: Convert to fraction form
    159,942.88/220,722.96 = 88,322.80/x
  3. Step 3: Cross multiply
    159,942.88x = 220,722.96 × 88,322.80
  4. Step 4: Simplify right side
    159,942.88x = 19,494,869,851.49
  5. Step 5: Solve for x
    x = 19,494,869,851.49/159,942.88
  6. Step 6: Final answer
    x = 121,886.45

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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.