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Finding the Fourth Proportional to 144,610.86, 199,565.40 and 79,205.40

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Solution

The fourth proportional to 144,610.86, 199,565.40 and 79,205.40 is: 109,304.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,610.86 : 199,565.40 = 79,205.40 : x
  2. Step 2: Convert to fraction form
    144,610.86/199,565.40 = 79,205.40/x
  3. Step 3: Cross multiply
    144,610.86x = 199,565.40 × 79,205.40
  4. Step 4: Simplify right side
    144,610.86x = 15,806,657,333.16
  5. Step 5: Solve for x
    x = 15,806,657,333.16/144,610.86
  6. Step 6: Final answer
    x = 109,304.77

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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.