Home / 126,477.74-174,552.62-78,076.70

Finding the Fourth Proportional to 126,477.74, 174,552.62 and 78,076.70

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Solution

The fourth proportional to 126,477.74, 174,552.62 and 78,076.70 is: 107,754.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,477.74 : 174,552.62 = 78,076.70 : x
  2. Step 2: Convert to fraction form
    126,477.74/174,552.62 = 78,076.70/x
  3. Step 3: Cross multiply
    126,477.74x = 174,552.62 × 78,076.70
  4. Step 4: Simplify right side
    126,477.74x = 13,628,491,282.81
  5. Step 5: Solve for x
    x = 13,628,491,282.81/126,477.74
  6. Step 6: Final answer
    x = 107,754.07

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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.