Home / 136,407.28-188,246.54-75,150.22

Finding the Fourth Proportional to 136,407.28, 188,246.54 and 75,150.22

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Solution

The fourth proportional to 136,407.28, 188,246.54 and 75,150.22 is: 103,709.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,407.28 : 188,246.54 = 75,150.22 : x
  2. Step 2: Convert to fraction form
    136,407.28/188,246.54 = 75,150.22/x
  3. Step 3: Cross multiply
    136,407.28x = 188,246.54 × 75,150.22
  4. Step 4: Simplify right side
    136,407.28x = 14,146,768,519.49
  5. Step 5: Solve for x
    x = 14,146,768,519.49/136,407.28
  6. Step 6: Final answer
    x = 103,709.78

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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.