Home / 136,272.09-188,054.15-75,841.71

Finding the Fourth Proportional to 136,272.09, 188,054.15 and 75,841.71

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Solution

The fourth proportional to 136,272.09, 188,054.15 and 75,841.71 is: 104,660.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,272.09 : 188,054.15 = 75,841.71 : x
  2. Step 2: Convert to fraction form
    136,272.09/188,054.15 = 75,841.71/x
  3. Step 3: Cross multiply
    136,272.09x = 188,054.15 × 75,841.71
  4. Step 4: Simplify right side
    136,272.09x = 14,262,347,929.39
  5. Step 5: Solve for x
    x = 14,262,347,929.39/136,272.09
  6. Step 6: Final answer
    x = 104,660.81

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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.