Home / 143,772.02-198,416.79-79,252.73

Finding the Fourth Proportional to 143,772.02, 198,416.79 and 79,252.73

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Solution

The fourth proportional to 143,772.02, 198,416.79 and 79,252.73 is: 109,375.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,772.02 : 198,416.79 = 79,252.73 : x
  2. Step 2: Convert to fraction form
    143,772.02/198,416.79 = 79,252.73/x
  3. Step 3: Cross multiply
    143,772.02x = 198,416.79 × 79,252.73
  4. Step 4: Simplify right side
    143,772.02x = 15,725,072,285.34
  5. Step 5: Solve for x
    x = 15,725,072,285.34/143,772.02
  6. Step 6: Final answer
    x = 109,375.05

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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.