Home / 131,538.36-197,336.76-61,379.40

Finding the Fourth Proportional to 131,538.36, 197,336.76 and 61,379.40

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Solution

The fourth proportional to 131,538.36, 197,336.76 and 61,379.40 is: 92,082.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,538.36 : 197,336.76 = 61,379.40 : x
  2. Step 2: Convert to fraction form
    131,538.36/197,336.76 = 61,379.40/x
  3. Step 3: Cross multiply
    131,538.36x = 197,336.76 × 61,379.40
  4. Step 4: Simplify right side
    131,538.36x = 12,112,411,926.74
  5. Step 5: Solve for x
    x = 12,112,411,926.74/131,538.36
  6. Step 6: Final answer
    x = 92,082.73

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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.