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Finding the Fourth Proportional to 75,151, 112,743.78 and 25,903

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Solution

The fourth proportional to 75,151, 112,743.78 and 25,903 is: 38,860.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,151 : 112,743.78 = 25,903 : x
  2. Step 2: Convert to fraction form
    75,151/112,743.78 = 25,903/x
  3. Step 3: Cross multiply
    75,151x = 112,743.78 × 25,903
  4. Step 4: Simplify right side
    75,151x = 2,920,402,133.34
  5. Step 5: Solve for x
    x = 2,920,402,133.34/75,151
  6. Step 6: Final answer
    x = 38,860.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.