Home / 124,159.44-171,287.76-78,137.56

Finding the Fourth Proportional to 124,159.44, 171,287.76 and 78,137.56

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Solution

The fourth proportional to 124,159.44, 171,287.76 and 78,137.56 is: 107,796.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,159.44 : 171,287.76 = 78,137.56 : x
  2. Step 2: Convert to fraction form
    124,159.44/171,287.76 = 78,137.56/x
  3. Step 3: Cross multiply
    124,159.44x = 171,287.76 × 78,137.56
  4. Step 4: Simplify right side
    124,159.44x = 13,384,007,624.27
  5. Step 5: Solve for x
    x = 13,384,007,624.27/124,159.44
  6. Step 6: Final answer
    x = 107,796.94

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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.