Home / 129,941.96-179,317.97-72,582.08

Finding the Fourth Proportional to 129,941.96, 179,317.97 and 72,582.08

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Solution

The fourth proportional to 129,941.96, 179,317.97 and 72,582.08 is: 100,162.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,941.96 : 179,317.97 = 72,582.08 : x
  2. Step 2: Convert to fraction form
    129,941.96/179,317.97 = 72,582.08/x
  3. Step 3: Cross multiply
    129,941.96x = 179,317.97 × 72,582.08
  4. Step 4: Simplify right side
    129,941.96x = 13,015,270,256.66
  5. Step 5: Solve for x
    x = 13,015,270,256.66/129,941.96
  6. Step 6: Final answer
    x = 100,162.19

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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.