Home / 131,418.10-197,127.15-100,314.10

Finding the Fourth Proportional to 131,418.10, 197,127.15 and 100,314.10

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Solution

The fourth proportional to 131,418.10, 197,127.15 and 100,314.10 is: 150,471.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,418.10 : 197,127.15 = 100,314.10 : x
  2. Step 2: Convert to fraction form
    131,418.10/197,127.15 = 100,314.10/x
  3. Step 3: Cross multiply
    131,418.10x = 197,127.15 × 100,314.10
  4. Step 4: Simplify right side
    131,418.10x = 19,774,632,637.82
  5. Step 5: Solve for x
    x = 19,774,632,637.82/131,418.10
  6. Step 6: Final answer
    x = 150,471.15

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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.