Home / 126,453.84-189,659.52-42,206.28

Finding the Fourth Proportional to 126,453.84, 189,659.52 and 42,206.28

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Solution

The fourth proportional to 126,453.84, 189,659.52 and 42,206.28 is: 63,302.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,453.84 : 189,659.52 = 42,206.28 : x
  2. Step 2: Convert to fraction form
    126,453.84/189,659.52 = 42,206.28/x
  3. Step 3: Cross multiply
    126,453.84x = 189,659.52 × 42,206.28
  4. Step 4: Simplify right side
    126,453.84x = 8,004,822,805.79
  5. Step 5: Solve for x
    x = 8,004,822,805.79/126,453.84
  6. Step 6: Final answer
    x = 63,302.33

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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.