Home / 131,440.32-181,472.40-117,268.56

Finding the Fourth Proportional to 131,440.32, 181,472.40 and 117,268.56

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Solution

The fourth proportional to 131,440.32, 181,472.40 and 117,268.56 is: 161,906.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,440.32 : 181,472.40 = 117,268.56 : x
  2. Step 2: Convert to fraction form
    131,440.32/181,472.40 = 117,268.56/x
  3. Step 3: Cross multiply
    131,440.32x = 181,472.40 × 117,268.56
  4. Step 4: Simplify right side
    131,440.32x = 21,281,007,027.74
  5. Step 5: Solve for x
    x = 21,281,007,027.74/131,440.32
  6. Step 6: Final answer
    x = 161,906.23

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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.