Home / 102,005.72-153,008.37-27,125.87

Finding the Fourth Proportional to 102,005.72, 153,008.37 and 27,125.87

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Solution

The fourth proportional to 102,005.72, 153,008.37 and 27,125.87 is: 40,688.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,005.72 : 153,008.37 = 27,125.87 : x
  2. Step 2: Convert to fraction form
    102,005.72/153,008.37 = 27,125.87/x
  3. Step 3: Cross multiply
    102,005.72x = 153,008.37 × 27,125.87
  4. Step 4: Simplify right side
    102,005.72x = 4,150,485,153.53
  5. Step 5: Solve for x
    x = 4,150,485,153.53/102,005.72
  6. Step 6: Final answer
    x = 40,688.75

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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.