Home / 127,270.60-175,552.74-78,190.72

Finding the Fourth Proportional to 127,270.60, 175,552.74 and 78,190.72

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Solution

The fourth proportional to 127,270.60, 175,552.74 and 78,190.72 is: 107,853.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,270.60 : 175,552.74 = 78,190.72 : x
  2. Step 2: Convert to fraction form
    127,270.60/175,552.74 = 78,190.72/x
  3. Step 3: Cross multiply
    127,270.60x = 175,552.74 × 78,190.72
  4. Step 4: Simplify right side
    127,270.60x = 13,726,595,138.57
  5. Step 5: Solve for x
    x = 13,726,595,138.57/127,270.60
  6. Step 6: Final answer
    x = 107,853.62

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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.