Home / 136,212.60-187,974.54-75,790.20

Finding the Fourth Proportional to 136,212.60, 187,974.54 and 75,790.20

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Solution

The fourth proportional to 136,212.60, 187,974.54 and 75,790.20 is: 104,591.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,212.60 : 187,974.54 = 75,790.20 : x
  2. Step 2: Convert to fraction form
    136,212.60/187,974.54 = 75,790.20/x
  3. Step 3: Cross multiply
    136,212.60x = 187,974.54 × 75,790.20
  4. Step 4: Simplify right side
    136,212.60x = 14,246,627,981.51
  5. Step 5: Solve for x
    x = 14,246,627,981.51/136,212.60
  6. Step 6: Final answer
    x = 104,591.12

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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.