Home / 131,186.97-196,809.17-42,449.45

Finding the Fourth Proportional to 131,186.97, 196,809.17 and 42,449.45

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Solution

The fourth proportional to 131,186.97, 196,809.17 and 42,449.45 is: 63,683.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,186.97 : 196,809.17 = 42,449.45 : x
  2. Step 2: Convert to fraction form
    131,186.97/196,809.17 = 42,449.45/x
  3. Step 3: Cross multiply
    131,186.97x = 196,809.17 × 42,449.45
  4. Step 4: Simplify right side
    131,186.97x = 8,354,439,825.16
  5. Step 5: Solve for x
    x = 8,354,439,825.16/131,186.97
  6. Step 6: Final answer
    x = 63,683.46

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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.