Home / 126,322.88-189,444.84-42,063.36

Finding the Fourth Proportional to 126,322.88, 189,444.84 and 42,063.36

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Solution

The fourth proportional to 126,322.88, 189,444.84 and 42,063.36 is: 63,081.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,322.88 : 189,444.84 = 42,063.36 : x
  2. Step 2: Convert to fraction form
    126,322.88/189,444.84 = 42,063.36/x
  3. Step 3: Cross multiply
    126,322.88x = 189,444.84 × 42,063.36
  4. Step 4: Simplify right side
    126,322.88x = 7,968,686,505.06
  5. Step 5: Solve for x
    x = 7,968,686,505.06/126,322.88
  6. Step 6: Final answer
    x = 63,081.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.