Home / 135,029.94-186,357.15-81,342.06

Finding the Fourth Proportional to 135,029.94, 186,357.15 and 81,342.06

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Solution

The fourth proportional to 135,029.94, 186,357.15 and 81,342.06 is: 112,261.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,029.94 : 186,357.15 = 81,342.06 : x
  2. Step 2: Convert to fraction form
    135,029.94/186,357.15 = 81,342.06/x
  3. Step 3: Cross multiply
    135,029.94x = 186,357.15 × 81,342.06
  4. Step 4: Simplify right side
    135,029.94x = 15,158,674,476.73
  5. Step 5: Solve for x
    x = 15,158,674,476.73/135,029.94
  6. Step 6: Final answer
    x = 112,261.58

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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.