Home / 136,763.22-188,716.32-76,337.22

Finding the Fourth Proportional to 136,763.22, 188,716.32 and 76,337.22

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Solution

The fourth proportional to 136,763.22, 188,716.32 and 76,337.22 is: 105,335.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,763.22 : 188,716.32 = 76,337.22 : x
  2. Step 2: Convert to fraction form
    136,763.22/188,716.32 = 76,337.22/x
  3. Step 3: Cross multiply
    136,763.22x = 188,716.32 × 76,337.22
  4. Step 4: Simplify right side
    136,763.22x = 14,406,079,237.43
  5. Step 5: Solve for x
    x = 14,406,079,237.43/136,763.22
  6. Step 6: Final answer
    x = 105,335.92

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1.5x scale

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.