Home / 147,942.80-221,878.20-42,750.80

Finding the Fourth Proportional to 147,942.80, 221,878.20 and 42,750.80

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Solution

The fourth proportional to 147,942.80, 221,878.20 and 42,750.80 is: 64,115.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,942.80 : 221,878.20 = 42,750.80 : x
  2. Step 2: Convert to fraction form
    147,942.80/221,878.20 = 42,750.80/x
  3. Step 3: Cross multiply
    147,942.80x = 221,878.20 × 42,750.80
  4. Step 4: Simplify right side
    147,942.80x = 9,485,470,552.56
  5. Step 5: Solve for x
    x = 9,485,470,552.56/147,942.80
  6. Step 6: Final answer
    x = 64,115.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.