Home / 136,205.64-187,961.21-75,776.10

Finding the Fourth Proportional to 136,205.64, 187,961.21 and 75,776.10

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Solution

The fourth proportional to 136,205.64, 187,961.21 and 75,776.10 is: 104,569.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,205.64 : 187,961.21 = 75,776.10 : x
  2. Step 2: Convert to fraction form
    136,205.64/187,961.21 = 75,776.10/x
  3. Step 3: Cross multiply
    136,205.64x = 187,961.21 × 75,776.10
  4. Step 4: Simplify right side
    136,205.64x = 14,242,967,164.62
  5. Step 5: Solve for x
    x = 14,242,967,164.62/136,205.64
  6. Step 6: Final answer
    x = 104,569.58

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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.