Home / 144,106.12-198,858.09-80,447.95

Finding the Fourth Proportional to 144,106.12, 198,858.09 and 80,447.95

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Solution

The fourth proportional to 144,106.12, 198,858.09 and 80,447.95 is: 111,013.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,106.12 : 198,858.09 = 80,447.95 : x
  2. Step 2: Convert to fraction form
    144,106.12/198,858.09 = 80,447.95/x
  3. Step 3: Cross multiply
    144,106.12x = 198,858.09 × 80,447.95
  4. Step 4: Simplify right side
    144,106.12x = 15,997,725,681.42
  5. Step 5: Solve for x
    x = 15,997,725,681.42/144,106.12
  6. Step 6: Final answer
    x = 111,013.51

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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.