Home / 129,434.54-194,208.35-45,255.15

Finding the Fourth Proportional to 129,434.54, 194,208.35 and 45,255.15

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Solution

The fourth proportional to 129,434.54, 194,208.35 and 45,255.15 is: 67,902.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,434.54 : 194,208.35 = 45,255.15 : x
  2. Step 2: Convert to fraction form
    129,434.54/194,208.35 = 45,255.15/x
  3. Step 3: Cross multiply
    129,434.54x = 194,208.35 × 45,255.15
  4. Step 4: Simplify right side
    129,434.54x = 8,788,927,784.23
  5. Step 5: Solve for x
    x = 8,788,927,784.23/129,434.54
  6. Step 6: Final answer
    x = 67,902.49

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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.