Home / 132,400.20-198,600.30-70,192.20

Finding the Fourth Proportional to 132,400.20, 198,600.30 and 70,192.20

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Solution

The fourth proportional to 132,400.20, 198,600.30 and 70,192.20 is: 105,288.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,400.20 : 198,600.30 = 70,192.20 : x
  2. Step 2: Convert to fraction form
    132,400.20/198,600.30 = 70,192.20/x
  3. Step 3: Cross multiply
    132,400.20x = 198,600.30 × 70,192.20
  4. Step 4: Simplify right side
    132,400.20x = 13,940,191,977.66
  5. Step 5: Solve for x
    x = 13,940,191,977.66/132,400.20
  6. Step 6: Final answer
    x = 105,288.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.