Home / 137,444.28-189,591.66-87,055.80

Finding the Fourth Proportional to 137,444.28, 189,591.66 and 87,055.80

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Solution

The fourth proportional to 137,444.28, 189,591.66 and 87,055.80 is: 120,085.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,444.28 : 189,591.66 = 87,055.80 : x
  2. Step 2: Convert to fraction form
    137,444.28/189,591.66 = 87,055.80/x
  3. Step 3: Cross multiply
    137,444.28x = 189,591.66 × 87,055.80
  4. Step 4: Simplify right side
    137,444.28x = 16,505,053,634.63
  5. Step 5: Solve for x
    x = 16,505,053,634.63/137,444.28
  6. Step 6: Final answer
    x = 120,085.42

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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.