Home / 129,885.12-194,835.24-36,398.16

Finding the Fourth Proportional to 129,885.12, 194,835.24 and 36,398.16

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Solution

The fourth proportional to 129,885.12, 194,835.24 and 36,398.16 is: 54,599.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,885.12 : 194,835.24 = 36,398.16 : x
  2. Step 2: Convert to fraction form
    129,885.12/194,835.24 = 36,398.16/x
  3. Step 3: Cross multiply
    129,885.12x = 194,835.24 × 36,398.16
  4. Step 4: Simplify right side
    129,885.12x = 7,091,644,239.16
  5. Step 5: Solve for x
    x = 7,091,644,239.16/129,885.12
  6. Step 6: Final answer
    x = 54,599.36

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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.