Home / 144,046.07-198,783.55-79,515.28

Finding the Fourth Proportional to 144,046.07, 198,783.55 and 79,515.28

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Solution

The fourth proportional to 144,046.07, 198,783.55 and 79,515.28 is: 109,731.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,046.07 : 198,783.55 = 79,515.28 : x
  2. Step 2: Convert to fraction form
    144,046.07/198,783.55 = 79,515.28/x
  3. Step 3: Cross multiply
    144,046.07x = 198,783.55 × 79,515.28
  4. Step 4: Simplify right side
    144,046.07x = 15,806,329,637.64
  5. Step 5: Solve for x
    x = 15,806,329,637.64/144,046.07
  6. Step 6: Final answer
    x = 109,731.07

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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.