Home / 124,997.18-172,496.40-68,412.20

Finding the Fourth Proportional to 124,997.18, 172,496.40 and 68,412.20

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Solution

The fourth proportional to 124,997.18, 172,496.40 and 68,412.20 is: 94,409.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,997.18 : 172,496.40 = 68,412.20 : x
  2. Step 2: Convert to fraction form
    124,997.18/172,496.40 = 68,412.20/x
  3. Step 3: Cross multiply
    124,997.18x = 172,496.40 × 68,412.20
  4. Step 4: Simplify right side
    124,997.18x = 11,800,858,216.08
  5. Step 5: Solve for x
    x = 11,800,858,216.08/124,997.18
  6. Step 6: Final answer
    x = 94,409.00

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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.