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Finding the Fourth Proportional to 129,488.58, 194,019.03 and 59,212.98

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Solution

The fourth proportional to 129,488.58, 194,019.03 and 59,212.98 is: 88,721.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,488.58 : 194,019.03 = 59,212.98 : x
  2. Step 2: Convert to fraction form
    129,488.58/194,019.03 = 59,212.98/x
  3. Step 3: Cross multiply
    129,488.58x = 194,019.03 × 59,212.98
  4. Step 4: Simplify right side
    129,488.58x = 11,488,444,943.01
  5. Step 5: Solve for x
    x = 11,488,444,943.01/129,488.58
  6. Step 6: Final answer
    x = 88,721.68

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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.