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Finding the Fourth Proportional to 159,518.54, 220,151.09 and 119,162.21

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Solution

The fourth proportional to 159,518.54, 220,151.09 and 119,162.21 is: 164,455.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,518.54 : 220,151.09 = 119,162.21 : x
  2. Step 2: Convert to fraction form
    159,518.54/220,151.09 = 119,162.21/x
  3. Step 3: Cross multiply
    159,518.54x = 220,151.09 × 119,162.21
  4. Step 4: Simplify right side
    159,518.54x = 26,233,689,615.46
  5. Step 5: Solve for x
    x = 26,233,689,615.46/159,518.54
  6. Step 6: Final answer
    x = 164,455.42

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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.