Home / 130,387.16-179,928.06-80,076.44

Finding the Fourth Proportional to 130,387.16, 179,928.06 and 80,076.44

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Solution

The fourth proportional to 130,387.16, 179,928.06 and 80,076.44 is: 110,501.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,387.16 : 179,928.06 = 80,076.44 : x
  2. Step 2: Convert to fraction form
    130,387.16/179,928.06 = 80,076.44/x
  3. Step 3: Cross multiply
    130,387.16x = 179,928.06 × 80,076.44
  4. Step 4: Simplify right side
    130,387.16x = 14,407,998,500.91
  5. Step 5: Solve for x
    x = 14,407,998,500.91/130,387.16
  6. Step 6: Final answer
    x = 110,501.67

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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.