Home / 136,333.97-188,147.09-75,908.45

Finding the Fourth Proportional to 136,333.97, 188,147.09 and 75,908.45

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Solution

The fourth proportional to 136,333.97, 188,147.09 and 75,908.45 is: 104,757.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,333.97 : 188,147.09 = 75,908.45 : x
  2. Step 2: Convert to fraction form
    136,333.97/188,147.09 = 75,908.45/x
  3. Step 3: Cross multiply
    136,333.97x = 188,147.09 × 75,908.45
  4. Step 4: Simplify right side
    136,333.97x = 14,281,953,973.91
  5. Step 5: Solve for x
    x = 14,281,953,973.91/136,333.97
  6. Step 6: Final answer
    x = 104,757.12

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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.