Home / 126,501.52-189,783.41-89,134.57

Finding the Fourth Proportional to 126,501.52, 189,783.41 and 89,134.57

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Solution

The fourth proportional to 126,501.52, 189,783.41 and 89,134.57 is: 133,723.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,501.52 : 189,783.41 = 89,134.57 : x
  2. Step 2: Convert to fraction form
    126,501.52/189,783.41 = 89,134.57/x
  3. Step 3: Cross multiply
    126,501.52x = 189,783.41 × 89,134.57
  4. Step 4: Simplify right side
    126,501.52x = 16,916,262,643.48
  5. Step 5: Solve for x
    x = 16,916,262,643.48/126,501.52
  6. Step 6: Final answer
    x = 133,723.79

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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.