Home / 148,543.14-222,434.40-81,909.38

Finding the Fourth Proportional to 148,543.14, 222,434.40 and 81,909.38

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Solution

The fourth proportional to 148,543.14, 222,434.40 and 81,909.38 is: 122,654.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,543.14 : 222,434.40 = 81,909.38 : x
  2. Step 2: Convert to fraction form
    148,543.14/222,434.40 = 81,909.38/x
  3. Step 3: Cross multiply
    148,543.14x = 222,434.40 × 81,909.38
  4. Step 4: Simplify right side
    148,543.14x = 18,219,463,794.67
  5. Step 5: Solve for x
    x = 18,219,463,794.67/148,543.14
  6. Step 6: Final answer
    x = 122,654.36

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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.