Home / 105,042.38-144,960.45-57,297.43

Finding the Fourth Proportional to 105,042.38, 144,960.45 and 57,297.43

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Solution

The fourth proportional to 105,042.38, 144,960.45 and 57,297.43 is: 79,071.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,042.38 : 144,960.45 = 57,297.43 : x
  2. Step 2: Convert to fraction form
    105,042.38/144,960.45 = 57,297.43/x
  3. Step 3: Cross multiply
    105,042.38x = 144,960.45 × 57,297.43
  4. Step 4: Simplify right side
    105,042.38x = 8,305,860,874.24
  5. Step 5: Solve for x
    x = 8,305,860,874.24/105,042.38
  6. Step 6: Final answer
    x = 79,071.53

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1.5x scale

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.