Home / 130,200.92-179,676.36-72,839.96

Finding the Fourth Proportional to 130,200.92, 179,676.36 and 72,839.96

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Solution

The fourth proportional to 130,200.92, 179,676.36 and 72,839.96 is: 100,518.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,200.92 : 179,676.36 = 72,839.96 : x
  2. Step 2: Convert to fraction form
    130,200.92/179,676.36 = 72,839.96/x
  3. Step 3: Cross multiply
    130,200.92x = 179,676.36 × 72,839.96
  4. Step 4: Simplify right side
    130,200.92x = 13,087,618,650.75
  5. Step 5: Solve for x
    x = 13,087,618,650.75/130,200.92
  6. Step 6: Final answer
    x = 100,518.64

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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.