Home / 131,521.80-197,280.87-123,116.43

Finding the Fourth Proportional to 131,521.80, 197,280.87 and 123,116.43

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Solution

The fourth proportional to 131,521.80, 197,280.87 and 123,116.43 is: 184,672.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,521.80 : 197,280.87 = 123,116.43 : x
  2. Step 2: Convert to fraction form
    131,521.80/197,280.87 = 123,116.43/x
  3. Step 3: Cross multiply
    131,521.80x = 197,280.87 × 123,116.43
  4. Step 4: Simplify right side
    131,521.80x = 24,288,516,421.69
  5. Step 5: Solve for x
    x = 24,288,516,421.69/131,521.80
  6. Step 6: Final answer
    x = 184,672.93

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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.