Home / 131,455.24-181,397.94-74,855.56

Finding the Fourth Proportional to 131,455.24, 181,397.94 and 74,855.56

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Solution

The fourth proportional to 131,455.24, 181,397.94 and 74,855.56 is: 103,294.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,455.24 : 181,397.94 = 74,855.56 : x
  2. Step 2: Convert to fraction form
    131,455.24/181,397.94 = 74,855.56/x
  3. Step 3: Cross multiply
    131,455.24x = 181,397.94 × 74,855.56
  4. Step 4: Simplify right side
    131,455.24x = 13,578,644,381.55
  5. Step 5: Solve for x
    x = 13,578,644,381.55/131,455.24
  6. Step 6: Final answer
    x = 103,294.81

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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.