Home / 136,137.24-187,871.40-75,714.48

Finding the Fourth Proportional to 136,137.24, 187,871.40 and 75,714.48

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Solution

The fourth proportional to 136,137.24, 187,871.40 and 75,714.48 is: 104,487.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,137.24 : 187,871.40 = 75,714.48 : x
  2. Step 2: Convert to fraction form
    136,137.24/187,871.40 = 75,714.48/x
  3. Step 3: Cross multiply
    136,137.24x = 187,871.40 × 75,714.48
  4. Step 4: Simplify right side
    136,137.24x = 14,224,585,357.87
  5. Step 5: Solve for x
    x = 14,224,585,357.87/136,137.24
  6. Step 6: Final answer
    x = 104,487.10

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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.