Home / 136,239.87-187,989.36-75,810.33

Finding the Fourth Proportional to 136,239.87, 187,989.36 and 75,810.33

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Solution

The fourth proportional to 136,239.87, 187,989.36 and 75,810.33 is: 104,606.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,239.87 : 187,989.36 = 75,810.33 : x
  2. Step 2: Convert to fraction form
    136,239.87/187,989.36 = 75,810.33/x
  3. Step 3: Cross multiply
    136,239.87x = 187,989.36 × 75,810.33
  4. Step 4: Simplify right side
    136,239.87x = 14,251,535,133.80
  5. Step 5: Solve for x
    x = 14,251,535,133.80/136,239.87
  6. Step 6: Final answer
    x = 104,606.20

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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.