Home / 123,144.84-170,080.02-82,788.66

Finding the Fourth Proportional to 123,144.84, 170,080.02 and 82,788.66

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Solution

The fourth proportional to 123,144.84, 170,080.02 and 82,788.66 is: 114,342.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,144.84 : 170,080.02 = 82,788.66 : x
  2. Step 2: Convert to fraction form
    123,144.84/170,080.02 = 82,788.66/x
  3. Step 3: Cross multiply
    123,144.84x = 170,080.02 × 82,788.66
  4. Step 4: Simplify right side
    123,144.84x = 14,080,696,948.57
  5. Step 5: Solve for x
    x = 14,080,696,948.57/123,144.84
  6. Step 6: Final answer
    x = 114,342.57

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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.