Home / 131,822.85-181,911.65-74,464.86

Finding the Fourth Proportional to 131,822.85, 181,911.65 and 74,464.86

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Solution

The fourth proportional to 131,822.85, 181,911.65 and 74,464.86 is: 102,759.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,822.85 : 181,911.65 = 74,464.86 : x
  2. Step 2: Convert to fraction form
    131,822.85/181,911.65 = 74,464.86/x
  3. Step 3: Cross multiply
    131,822.85x = 181,911.65 × 74,464.86
  4. Step 4: Simplify right side
    131,822.85x = 13,546,025,177.29
  5. Step 5: Solve for x
    x = 13,546,025,177.29/131,822.85
  6. Step 6: Final answer
    x = 102,759.31

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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.