Home / 105,743.88-145,926.77-57,997.62

Finding the Fourth Proportional to 105,743.88, 145,926.77 and 57,997.62

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Solution

The fourth proportional to 105,743.88, 145,926.77 and 57,997.62 is: 80,036.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,743.88 : 145,926.77 = 57,997.62 : x
  2. Step 2: Convert to fraction form
    105,743.88/145,926.77 = 57,997.62/x
  3. Step 3: Cross multiply
    105,743.88x = 145,926.77 × 57,997.62
  4. Step 4: Simplify right side
    105,743.88x = 8,463,405,064.30
  5. Step 5: Solve for x
    x = 8,463,405,064.30/105,743.88
  6. Step 6: Final answer
    x = 80,036.83

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1.5x scale

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.