Home / 126,748.48-174,944.96-78,976.16

Finding the Fourth Proportional to 126,748.48, 174,944.96 and 78,976.16

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Solution

The fourth proportional to 126,748.48, 174,944.96 and 78,976.16 is: 109,007.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,748.48 : 174,944.96 = 78,976.16 : x
  2. Step 2: Convert to fraction form
    126,748.48/174,944.96 = 78,976.16/x
  3. Step 3: Cross multiply
    126,748.48x = 174,944.96 × 78,976.16
  4. Step 4: Simplify right side
    126,748.48x = 13,816,481,152.15
  5. Step 5: Solve for x
    x = 13,816,481,152.15/126,748.48
  6. Step 6: Final answer
    x = 109,007.08

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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.