Home / 147,922.80-221,738.40-72,981.60

Finding the Fourth Proportional to 147,922.80, 221,738.40 and 72,981.60

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Solution

The fourth proportional to 147,922.80, 221,738.40 and 72,981.60 is: 109,400.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,922.80 : 221,738.40 = 72,981.60 : x
  2. Step 2: Convert to fraction form
    147,922.80/221,738.40 = 72,981.60/x
  3. Step 3: Cross multiply
    147,922.80x = 221,738.40 × 72,981.60
  4. Step 4: Simplify right side
    147,922.80x = 16,182,823,213.44
  5. Step 5: Solve for x
    x = 16,182,823,213.44/147,922.80
  6. Step 6: Final answer
    x = 109,400.47

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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.