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Finding the Fourth Proportional to 130,356, 179,891.28 and 73,767.51

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Solution

The fourth proportional to 130,356, 179,891.28 and 73,767.51 is: 101,799.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,356 : 179,891.28 = 73,767.51 : x
  2. Step 2: Convert to fraction form
    130,356/179,891.28 = 73,767.51/x
  3. Step 3: Cross multiply
    130,356x = 179,891.28 × 73,767.51
  4. Step 4: Simplify right side
    130,356x = 13,270,131,796.31
  5. Step 5: Solve for x
    x = 13,270,131,796.31/130,356
  6. Step 6: Final answer
    x = 101,799.16

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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.