Home / 136,137.52-187,876.83-75,709.36

Finding the Fourth Proportional to 136,137.52, 187,876.83 and 75,709.36

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Solution

The fourth proportional to 136,137.52, 187,876.83 and 75,709.36 is: 104,482.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,137.52 : 187,876.83 = 75,709.36 : x
  2. Step 2: Convert to fraction form
    136,137.52/187,876.83 = 75,709.36/x
  3. Step 3: Cross multiply
    136,137.52x = 187,876.83 × 75,709.36
  4. Step 4: Simplify right side
    136,137.52x = 14,224,034,558.13
  5. Step 5: Solve for x
    x = 14,224,034,558.13/136,137.52
  6. Step 6: Final answer
    x = 104,482.84

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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.