Home / 239,111.76-329,971.74-131,679.51

Finding the Fourth Proportional to 239,111.76, 329,971.74 and 131,679.51

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Solution

The fourth proportional to 239,111.76, 329,971.74 and 131,679.51 is: 181,716.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,111.76 : 329,971.74 = 131,679.51 : x
  2. Step 2: Convert to fraction form
    239,111.76/329,971.74 = 131,679.51/x
  3. Step 3: Cross multiply
    239,111.76x = 329,971.74 × 131,679.51
  4. Step 4: Simplify right side
    239,111.76x = 43,450,517,037.05
  5. Step 5: Solve for x
    x = 43,450,517,037.05/239,111.76
  6. Step 6: Final answer
    x = 181,716.35

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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.