Home / 124,805.20-172,230.87-68,216.98

Finding the Fourth Proportional to 124,805.20, 172,230.87 and 68,216.98

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Solution

The fourth proportional to 124,805.20, 172,230.87 and 68,216.98 is: 94,139.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,805.20 : 172,230.87 = 68,216.98 : x
  2. Step 2: Convert to fraction form
    124,805.20/172,230.87 = 68,216.98/x
  3. Step 3: Cross multiply
    124,805.20x = 172,230.87 × 68,216.98
  4. Step 4: Simplify right side
    124,805.20x = 11,749,069,814.17
  5. Step 5: Solve for x
    x = 11,749,069,814.17/124,805.20
  6. Step 6: Final answer
    x = 94,139.27

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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.