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Finding the Fourth Proportional to 144,089.69, 198,829.44 and 79,554.74

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Solution

The fourth proportional to 144,089.69, 198,829.44 and 79,554.74 is: 109,777.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,089.69 : 198,829.44 = 79,554.74 : x
  2. Step 2: Convert to fraction form
    144,089.69/198,829.44 = 79,554.74/x
  3. Step 3: Cross multiply
    144,089.69x = 198,829.44 × 79,554.74
  4. Step 4: Simplify right side
    144,089.69x = 15,817,823,409.40
  5. Step 5: Solve for x
    x = 15,817,823,409.40/144,089.69
  6. Step 6: Final answer
    x = 109,777.63

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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.