Home / 131,921.66-182,055.39-75,331.82

Finding the Fourth Proportional to 131,921.66, 182,055.39 and 75,331.82

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Solution

The fourth proportional to 131,921.66, 182,055.39 and 75,331.82 is: 103,959.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,921.66 : 182,055.39 = 75,331.82 : x
  2. Step 2: Convert to fraction form
    131,921.66/182,055.39 = 75,331.82/x
  3. Step 3: Cross multiply
    131,921.66x = 182,055.39 × 75,331.82
  4. Step 4: Simplify right side
    131,921.66x = 13,714,563,869.51
  5. Step 5: Solve for x
    x = 13,714,563,869.51/131,921.66
  6. Step 6: Final answer
    x = 103,959.91

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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.