Home / 159,006.72-219,198.12-111,111.36

Finding the Fourth Proportional to 159,006.72, 219,198.12 and 111,111.36

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Solution

The fourth proportional to 159,006.72, 219,198.12 and 111,111.36 is: 153,172.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,006.72 : 219,198.12 = 111,111.36 : x
  2. Step 2: Convert to fraction form
    159,006.72/219,198.12 = 111,111.36/x
  3. Step 3: Cross multiply
    159,006.72x = 219,198.12 × 111,111.36
  4. Step 4: Simplify right side
    159,006.72x = 24,355,401,222.64
  5. Step 5: Solve for x
    x = 24,355,401,222.64/159,006.72
  6. Step 6: Final answer
    x = 153,172.15

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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.