Home / 131,834.12-181,942.25-74,483.96

Finding the Fourth Proportional to 131,834.12, 181,942.25 and 74,483.96

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Solution

The fourth proportional to 131,834.12, 181,942.25 and 74,483.96 is: 102,794.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,834.12 : 181,942.25 = 74,483.96 : x
  2. Step 2: Convert to fraction form
    131,834.12/181,942.25 = 74,483.96/x
  3. Step 3: Cross multiply
    131,834.12x = 181,942.25 × 74,483.96
  4. Step 4: Simplify right side
    131,834.12x = 13,551,777,989.18
  5. Step 5: Solve for x
    x = 13,551,777,989.18/131,834.12
  6. Step 6: Final answer
    x = 102,794.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.