Home / 130,387.66-179,928.75-80,076.94

Finding the Fourth Proportional to 130,387.66, 179,928.75 and 80,076.94

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Solution

The fourth proportional to 130,387.66, 179,928.75 and 80,076.94 is: 110,502.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,387.66 : 179,928.75 = 80,076.94 : x
  2. Step 2: Convert to fraction form
    130,387.66/179,928.75 = 80,076.94/x
  3. Step 3: Cross multiply
    130,387.66x = 179,928.75 × 80,076.94
  4. Step 4: Simplify right side
    130,387.66x = 14,408,143,718.03
  5. Step 5: Solve for x
    x = 14,408,143,718.03/130,387.66
  6. Step 6: Final answer
    x = 110,502.36

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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.