Home / 136,216.80-187,961.04-75,775.32

Finding the Fourth Proportional to 136,216.80, 187,961.04 and 75,775.32

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Solution

The fourth proportional to 136,216.80, 187,961.04 and 75,775.32 is: 104,559.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,216.80 : 187,961.04 = 75,775.32 : x
  2. Step 2: Convert to fraction form
    136,216.80/187,961.04 = 75,775.32/x
  3. Step 3: Cross multiply
    136,216.80x = 187,961.04 × 75,775.32
  4. Step 4: Simplify right side
    136,216.80x = 14,242,807,953.53
  5. Step 5: Solve for x
    x = 14,242,807,953.53/136,216.80
  6. Step 6: Final answer
    x = 104,559.85

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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.