Home / 136,216.08-187,977.15-74,965.80

Finding the Fourth Proportional to 136,216.08, 187,977.15 and 74,965.80

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Solution

The fourth proportional to 136,216.08, 187,977.15 and 74,965.80 is: 103,452.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,216.08 : 187,977.15 = 74,965.80 : x
  2. Step 2: Convert to fraction form
    136,216.08/187,977.15 = 74,965.80/x
  3. Step 3: Cross multiply
    136,216.08x = 187,977.15 × 74,965.80
  4. Step 4: Simplify right side
    136,216.08x = 14,091,857,431.47
  5. Step 5: Solve for x
    x = 14,091,857,431.47/136,216.08
  6. Step 6: Final answer
    x = 103,452.23

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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.