Home / 126,281.68-189,426.62-66,295

Finding the Fourth Proportional to 126,281.68, 189,426.62 and 66,295

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Solution

The fourth proportional to 126,281.68, 189,426.62 and 66,295 is: 99,444.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,281.68 : 189,426.62 = 66,295 : x
  2. Step 2: Convert to fraction form
    126,281.68/189,426.62 = 66,295/x
  3. Step 3: Cross multiply
    126,281.68x = 189,426.62 × 66,295
  4. Step 4: Simplify right side
    126,281.68x = 12,558,037,441.43
  5. Step 5: Solve for x
    x = 12,558,037,441.43/126,281.68
  6. Step 6: Final answer
    x = 99,444.65

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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.