Home / 146,927.78-202,760.28-87,311.78

Finding the Fourth Proportional to 146,927.78, 202,760.28 and 87,311.78

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Solution

The fourth proportional to 146,927.78, 202,760.28 and 87,311.78 is: 120,490.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,927.78 : 202,760.28 = 87,311.78 : x
  2. Step 2: Convert to fraction form
    146,927.78/202,760.28 = 87,311.78/x
  3. Step 3: Cross multiply
    146,927.78x = 202,760.28 × 87,311.78
  4. Step 4: Simplify right side
    146,927.78x = 17,703,360,960.10
  5. Step 5: Solve for x
    x = 17,703,360,960.10/146,927.78
  6. Step 6: Final answer
    x = 120,490.22

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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.