Home / 105,092.23-144,989.39-80,900.59

Finding the Fourth Proportional to 105,092.23, 144,989.39 and 80,900.59

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Solution

The fourth proportional to 105,092.23, 144,989.39 and 80,900.59 is: 111,613.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,092.23 : 144,989.39 = 80,900.59 : x
  2. Step 2: Convert to fraction form
    105,092.23/144,989.39 = 80,900.59/x
  3. Step 3: Cross multiply
    105,092.23x = 144,989.39 × 80,900.59
  4. Step 4: Simplify right side
    105,092.23x = 11,729,727,194.74
  5. Step 5: Solve for x
    x = 11,729,727,194.74/105,092.23
  6. Step 6: Final answer
    x = 111,613.65

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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.