Home / 131,609.32-181,632.42-77,867.24

Finding the Fourth Proportional to 131,609.32, 181,632.42 and 77,867.24

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Solution

The fourth proportional to 131,609.32, 181,632.42 and 77,867.24 is: 107,463.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,609.32 : 181,632.42 = 77,867.24 : x
  2. Step 2: Convert to fraction form
    131,609.32/181,632.42 = 77,867.24/x
  3. Step 3: Cross multiply
    131,609.32x = 181,632.42 × 77,867.24
  4. Step 4: Simplify right side
    131,609.32x = 14,143,215,239.92
  5. Step 5: Solve for x
    x = 14,143,215,239.92/131,609.32
  6. Step 6: Final answer
    x = 107,463.63

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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.