Home / 126,322.32-189,457.38-47,434.80

Finding the Fourth Proportional to 126,322.32, 189,457.38 and 47,434.80

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Solution

The fourth proportional to 126,322.32, 189,457.38 and 47,434.80 is: 71,142.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,322.32 : 189,457.38 = 47,434.80 : x
  2. Step 2: Convert to fraction form
    126,322.32/189,457.38 = 47,434.80/x
  3. Step 3: Cross multiply
    126,322.32x = 189,457.38 × 47,434.80
  4. Step 4: Simplify right side
    126,322.32x = 8,986,872,928.82
  5. Step 5: Solve for x
    x = 8,986,872,928.82/126,322.32
  6. Step 6: Final answer
    x = 71,142.40

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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.