Home / 131,429.29-181,376.16-73,287.37

Finding the Fourth Proportional to 131,429.29, 181,376.16 and 73,287.37

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Solution

The fourth proportional to 131,429.29, 181,376.16 and 73,287.37 is: 101,138.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,429.29 : 181,376.16 = 73,287.37 : x
  2. Step 2: Convert to fraction form
    131,429.29/181,376.16 = 73,287.37/x
  3. Step 3: Cross multiply
    131,429.29x = 181,376.16 × 73,287.37
  4. Step 4: Simplify right side
    131,429.29x = 13,292,580,859.11
  5. Step 5: Solve for x
    x = 13,292,580,859.11/131,429.29
  6. Step 6: Final answer
    x = 101,138.65

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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.