Home / 131,293.32-181,183.86-71,677.32

Finding the Fourth Proportional to 131,293.32, 181,183.86 and 71,677.32

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Solution

The fourth proportional to 131,293.32, 181,183.86 and 71,677.32 is: 98,914.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,293.32 : 181,183.86 = 71,677.32 : x
  2. Step 2: Convert to fraction form
    131,293.32/181,183.86 = 71,677.32/x
  3. Step 3: Cross multiply
    131,293.32x = 181,183.86 × 71,677.32
  4. Step 4: Simplify right side
    131,293.32x = 12,986,773,512.06
  5. Step 5: Solve for x
    x = 12,986,773,512.06/131,293.32
  6. Step 6: Final answer
    x = 98,914.20

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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.