Home / 127,140.45-175,464.58-69,789.48

Finding the Fourth Proportional to 127,140.45, 175,464.58 and 69,789.48

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Solution

The fourth proportional to 127,140.45, 175,464.58 and 69,789.48 is: 96,315.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,140.45 : 175,464.58 = 69,789.48 : x
  2. Step 2: Convert to fraction form
    127,140.45/175,464.58 = 69,789.48/x
  3. Step 3: Cross multiply
    127,140.45x = 175,464.58 × 69,789.48
  4. Step 4: Simplify right side
    127,140.45x = 12,245,581,796.62
  5. Step 5: Solve for x
    x = 12,245,581,796.62/127,140.45
  6. Step 6: Final answer
    x = 96,315.39

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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.