Home / 144,062.72-198,817.55-79,544.40

Finding the Fourth Proportional to 144,062.72, 198,817.55 and 79,544.40

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Solution

The fourth proportional to 144,062.72, 198,817.55 and 79,544.40 is: 109,777.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,062.72 : 198,817.55 = 79,544.40 : x
  2. Step 2: Convert to fraction form
    144,062.72/198,817.55 = 79,544.40/x
  3. Step 3: Cross multiply
    144,062.72x = 198,817.55 × 79,544.40
  4. Step 4: Simplify right side
    144,062.72x = 15,814,821,332.41
  5. Step 5: Solve for x
    x = 15,814,821,332.41/144,062.72
  6. Step 6: Final answer
    x = 109,777.33

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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.