Home / 131,909.81-197,870.25-38,415.56

Finding the Fourth Proportional to 131,909.81, 197,870.25 and 38,415.56

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Solution

The fourth proportional to 131,909.81, 197,870.25 and 38,415.56 is: 57,624.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,909.81 : 197,870.25 = 38,415.56 : x
  2. Step 2: Convert to fraction form
    131,909.81/197,870.25 = 38,415.56/x
  3. Step 3: Cross multiply
    131,909.81x = 197,870.25 × 38,415.56
  4. Step 4: Simplify right side
    131,909.81x = 7,601,296,461.09
  5. Step 5: Solve for x
    x = 7,601,296,461.09/131,909.81
  6. Step 6: Final answer
    x = 57,624.95

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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.