Home / 129,669.64-194,580.98-54,784.92

Finding the Fourth Proportional to 129,669.64, 194,580.98 and 54,784.92

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Solution

The fourth proportional to 129,669.64, 194,580.98 and 54,784.92 is: 82,209.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,669.64 : 194,580.98 = 54,784.92 : x
  2. Step 2: Convert to fraction form
    129,669.64/194,580.98 = 54,784.92/x
  3. Step 3: Cross multiply
    129,669.64x = 194,580.98 × 54,784.92
  4. Step 4: Simplify right side
    129,669.64x = 10,660,103,422.82
  5. Step 5: Solve for x
    x = 10,660,103,422.82/129,669.64
  6. Step 6: Final answer
    x = 82,209.71

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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.