Home / 136,588.49-204,496.37-72,400.38

Finding the Fourth Proportional to 136,588.49, 204,496.37 and 72,400.38

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Solution

The fourth proportional to 136,588.49, 204,496.37 and 72,400.38 is: 108,395.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,588.49 : 204,496.37 = 72,400.38 : x
  2. Step 2: Convert to fraction form
    136,588.49/204,496.37 = 72,400.38/x
  3. Step 3: Cross multiply
    136,588.49x = 204,496.37 × 72,400.38
  4. Step 4: Simplify right side
    136,588.49x = 14,805,614,975.22
  5. Step 5: Solve for x
    x = 14,805,614,975.22/136,588.49
  6. Step 6: Final answer
    x = 108,395.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.