Home / 131,369.91-181,291.04-74,009.92

Finding the Fourth Proportional to 131,369.91, 181,291.04 and 74,009.92

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Solution

The fourth proportional to 131,369.91, 181,291.04 and 74,009.92 is: 102,134.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,369.91 : 181,291.04 = 74,009.92 : x
  2. Step 2: Convert to fraction form
    131,369.91/181,291.04 = 74,009.92/x
  3. Step 3: Cross multiply
    131,369.91x = 181,291.04 × 74,009.92
  4. Step 4: Simplify right side
    131,369.91x = 13,417,335,367.12
  5. Step 5: Solve for x
    x = 13,417,335,367.12/131,369.91
  6. Step 6: Final answer
    x = 102,134.01

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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.