Home / 252,390.07-378,503.18-83,865.16

Finding the Fourth Proportional to 252,390.07, 378,503.18 and 83,865.16

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Solution

The fourth proportional to 252,390.07, 378,503.18 and 83,865.16 is: 125,770.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,390.07 : 378,503.18 = 83,865.16 : x
  2. Step 2: Convert to fraction form
    252,390.07/378,503.18 = 83,865.16/x
  3. Step 3: Cross multiply
    252,390.07x = 378,503.18 × 83,865.16
  4. Step 4: Simplify right side
    252,390.07x = 31,743,229,751.21
  5. Step 5: Solve for x
    x = 31,743,229,751.21/252,390.07
  6. Step 6: Final answer
    x = 125,770.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.