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Finding the Fourth Proportional to 109,722.93, 151,357.01 and 89,326.93

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Solution

The fourth proportional to 109,722.93, 151,357.01 and 89,326.93 is: 123,221.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,722.93 : 151,357.01 = 89,326.93 : x
  2. Step 2: Convert to fraction form
    109,722.93/151,357.01 = 89,326.93/x
  3. Step 3: Cross multiply
    109,722.93x = 151,357.01 × 89,326.93
  4. Step 4: Simplify right side
    109,722.93x = 13,520,256,590.64
  5. Step 5: Solve for x
    x = 13,520,256,590.64/109,722.93
  6. Step 6: Final answer
    x = 123,221.80

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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.