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Finding the Fourth Proportional to 159,557.58, 220,194.09 and 87,942.24

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Solution

The fourth proportional to 159,557.58, 220,194.09 and 87,942.24 is: 121,362.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,557.58 : 220,194.09 = 87,942.24 : x
  2. Step 2: Convert to fraction form
    159,557.58/220,194.09 = 87,942.24/x
  3. Step 3: Cross multiply
    159,557.58x = 220,194.09 × 87,942.24
  4. Step 4: Simplify right side
    159,557.58x = 19,364,361,509.36
  5. Step 5: Solve for x
    x = 19,364,361,509.36/159,557.58
  6. Step 6: Final answer
    x = 121,362.84

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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.