Home / 131,581.20-196,121-124,108.16

Finding the Fourth Proportional to 131,581.20, 196,121 and 124,108.16

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Solution

The fourth proportional to 131,581.20, 196,121 and 124,108.16 is: 184,982.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,581.20 : 196,121 = 124,108.16 : x
  2. Step 2: Convert to fraction form
    131,581.20/196,121 = 124,108.16/x
  3. Step 3: Cross multiply
    131,581.20x = 196,121 × 124,108.16
  4. Step 4: Simplify right side
    131,581.20x = 24,340,216,447.36
  5. Step 5: Solve for x
    x = 24,340,216,447.36/131,581.20
  6. Step 6: Final answer
    x = 184,982.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.