Home / 131,212.62-181,007.03-76,729.16

Finding the Fourth Proportional to 131,212.62, 181,007.03 and 76,729.16

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Solution

The fourth proportional to 131,212.62, 181,007.03 and 76,729.16 is: 105,847.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,212.62 : 181,007.03 = 76,729.16 : x
  2. Step 2: Convert to fraction form
    131,212.62/181,007.03 = 76,729.16/x
  3. Step 3: Cross multiply
    131,212.62x = 181,007.03 × 76,729.16
  4. Step 4: Simplify right side
    131,212.62x = 13,888,518,010.34
  5. Step 5: Solve for x
    x = 13,888,518,010.34/131,212.62
  6. Step 6: Final answer
    x = 105,847.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.