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Finding the Fourth Proportional to 144,136.67, 198,905.54 and 79,602.12

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Solution

The fourth proportional to 144,136.67, 198,905.54 and 79,602.12 is: 109,849.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,136.67 : 198,905.54 = 79,602.12 : x
  2. Step 2: Convert to fraction form
    144,136.67/198,905.54 = 79,602.12/x
  3. Step 3: Cross multiply
    144,136.67x = 198,905.54 × 79,602.12
  4. Step 4: Simplify right side
    144,136.67x = 15,833,302,265.73
  5. Step 5: Solve for x
    x = 15,833,302,265.73/144,136.67
  6. Step 6: Final answer
    x = 109,849.23

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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.