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Finding the Fourth Proportional to 119,722.51, 179,462.49 and 77,629.29

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Solution

The fourth proportional to 119,722.51, 179,462.49 and 77,629.29 is: 116,365.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,722.51 : 179,462.49 = 77,629.29 : x
  2. Step 2: Convert to fraction form
    119,722.51/179,462.49 = 77,629.29/x
  3. Step 3: Cross multiply
    119,722.51x = 179,462.49 × 77,629.29
  4. Step 4: Simplify right side
    119,722.51x = 13,931,544,716.24
  5. Step 5: Solve for x
    x = 13,931,544,716.24/119,722.51
  6. Step 6: Final answer
    x = 116,365.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.