Home / 278,030.38-416,895.54-126,144.56

Finding the Fourth Proportional to 278,030.38, 416,895.54 and 126,144.56

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Solution

The fourth proportional to 278,030.38, 416,895.54 and 126,144.56 is: 189,148.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,030.38 : 416,895.54 = 126,144.56 : x
  2. Step 2: Convert to fraction form
    278,030.38/416,895.54 = 126,144.56/x
  3. Step 3: Cross multiply
    278,030.38x = 416,895.54 × 126,144.56
  4. Step 4: Simplify right side
    278,030.38x = 52,589,104,459.26
  5. Step 5: Solve for x
    x = 52,589,104,459.26/278,030.38
  6. Step 6: Final answer
    x = 189,148.77

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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.