Home / 131,418.30-197,127.45-100,314.30

Finding the Fourth Proportional to 131,418.30, 197,127.45 and 100,314.30

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Solution

The fourth proportional to 131,418.30, 197,127.45 and 100,314.30 is: 150,471.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,418.30 : 197,127.45 = 100,314.30 : x
  2. Step 2: Convert to fraction form
    131,418.30/197,127.45 = 100,314.30/x
  3. Step 3: Cross multiply
    131,418.30x = 197,127.45 × 100,314.30
  4. Step 4: Simplify right side
    131,418.30x = 19,774,702,157.54
  5. Step 5: Solve for x
    x = 19,774,702,157.54/131,418.30
  6. Step 6: Final answer
    x = 150,471.45

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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.