Home / 124,751.13-172,157.77-68,162.50

Finding the Fourth Proportional to 124,751.13, 172,157.77 and 68,162.50

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Solution

The fourth proportional to 124,751.13, 172,157.77 and 68,162.50 is: 94,064.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,751.13 : 172,157.77 = 68,162.50 : x
  2. Step 2: Convert to fraction form
    124,751.13/172,157.77 = 68,162.50/x
  3. Step 3: Cross multiply
    124,751.13x = 172,157.77 × 68,162.50
  4. Step 4: Simplify right side
    124,751.13x = 11,734,703,997.63
  5. Step 5: Solve for x
    x = 11,734,703,997.63/124,751.13
  6. Step 6: Final answer
    x = 94,064.91

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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.