Home / 131,384.57-181,310.90-74,795.94

Finding the Fourth Proportional to 131,384.57, 181,310.90 and 74,795.94

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Solution

The fourth proportional to 131,384.57, 181,310.90 and 74,795.94 is: 103,218.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,384.57 : 181,310.90 = 74,795.94 : x
  2. Step 2: Convert to fraction form
    131,384.57/181,310.90 = 74,795.94/x
  3. Step 3: Cross multiply
    131,384.57x = 181,310.90 × 74,795.94
  4. Step 4: Simplify right side
    131,384.57x = 13,561,318,823.77
  5. Step 5: Solve for x
    x = 13,561,318,823.77/131,384.57
  6. Step 6: Final answer
    x = 103,218.51

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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.