Home / 131,909.63-197,869.91-38,415.38

Finding the Fourth Proportional to 131,909.63, 197,869.91 and 38,415.38

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Solution

The fourth proportional to 131,909.63, 197,869.91 and 38,415.38 is: 57,624.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,909.63 : 197,869.91 = 38,415.38 : x
  2. Step 2: Convert to fraction form
    131,909.63/197,869.91 = 38,415.38/x
  3. Step 3: Cross multiply
    131,909.63x = 197,869.91 × 38,415.38
  4. Step 4: Simplify right side
    131,909.63x = 7,601,246,601.79
  5. Step 5: Solve for x
    x = 7,601,246,601.79/131,909.63
  6. Step 6: Final answer
    x = 57,624.65

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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.