Home / 151,395.75-208,926.14-87,770.45

Finding the Fourth Proportional to 151,395.75, 208,926.14 and 87,770.45

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Solution

The fourth proportional to 151,395.75, 208,926.14 and 87,770.45 is: 121,123.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,395.75 : 208,926.14 = 87,770.45 : x
  2. Step 2: Convert to fraction form
    151,395.75/208,926.14 = 87,770.45/x
  3. Step 3: Cross multiply
    151,395.75x = 208,926.14 × 87,770.45
  4. Step 4: Simplify right side
    151,395.75x = 18,337,541,408.03
  5. Step 5: Solve for x
    x = 18,337,541,408.03/151,395.75
  6. Step 6: Final answer
    x = 121,123.22

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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.