Home / 109,939.72-151,720.20-62,192.11

Finding the Fourth Proportional to 109,939.72, 151,720.20 and 62,192.11

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Solution

The fourth proportional to 109,939.72, 151,720.20 and 62,192.11 is: 85,827.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,939.72 : 151,720.20 = 62,192.11 : x
  2. Step 2: Convert to fraction form
    109,939.72/151,720.20 = 62,192.11/x
  3. Step 3: Cross multiply
    109,939.72x = 151,720.20 × 62,192.11
  4. Step 4: Simplify right side
    109,939.72x = 9,435,798,298.06
  5. Step 5: Solve for x
    x = 9,435,798,298.06/109,939.72
  6. Step 6: Final answer
    x = 85,827.02

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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.