Home / 118,726.40-178,010.56-71,234.56

Finding the Fourth Proportional to 118,726.40, 178,010.56 and 71,234.56

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Solution

The fourth proportional to 118,726.40, 178,010.56 and 71,234.56 is: 106,804.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,726.40 : 178,010.56 = 71,234.56 : x
  2. Step 2: Convert to fraction form
    118,726.40/178,010.56 = 71,234.56/x
  3. Step 3: Cross multiply
    118,726.40x = 178,010.56 × 71,234.56
  4. Step 4: Simplify right side
    118,726.40x = 12,680,503,916.95
  5. Step 5: Solve for x
    x = 12,680,503,916.95/118,726.40
  6. Step 6: Final answer
    x = 106,804.42

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1.5x scale

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.