Home / 129,934.98-194,902.47-31,438.98

Finding the Fourth Proportional to 129,934.98, 194,902.47 and 31,438.98

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Solution

The fourth proportional to 129,934.98, 194,902.47 and 31,438.98 is: 47,158.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,934.98 : 194,902.47 = 31,438.98 : x
  2. Step 2: Convert to fraction form
    129,934.98/194,902.47 = 31,438.98/x
  3. Step 3: Cross multiply
    129,934.98x = 194,902.47 × 31,438.98
  4. Step 4: Simplify right side
    129,934.98x = 6,127,534,856.28
  5. Step 5: Solve for x
    x = 6,127,534,856.28/129,934.98
  6. Step 6: Final answer
    x = 47,158.47

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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.