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Finding the Fourth Proportional to 144,085.49, 198,841.11 and 79,554.52

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Solution

The fourth proportional to 144,085.49, 198,841.11 and 79,554.52 is: 109,786.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,085.49 : 198,841.11 = 79,554.52 : x
  2. Step 2: Convert to fraction form
    144,085.49/198,841.11 = 79,554.52/x
  3. Step 3: Cross multiply
    144,085.49x = 198,841.11 × 79,554.52
  4. Step 4: Simplify right side
    144,085.49x = 15,818,708,192.39
  5. Step 5: Solve for x
    x = 15,818,708,192.39/144,085.49
  6. Step 6: Final answer
    x = 109,786.96

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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.