Home / 148,814.82-205,306.29-85,118.58

Finding the Fourth Proportional to 148,814.82, 205,306.29 and 85,118.58

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Solution

The fourth proportional to 148,814.82, 205,306.29 and 85,118.58 is: 117,430.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,814.82 : 205,306.29 = 85,118.58 : x
  2. Step 2: Convert to fraction form
    148,814.82/205,306.29 = 85,118.58/x
  3. Step 3: Cross multiply
    148,814.82x = 205,306.29 × 85,118.58
  4. Step 4: Simplify right side
    148,814.82x = 17,475,379,869.87
  5. Step 5: Solve for x
    x = 17,475,379,869.87/148,814.82
  6. Step 6: Final answer
    x = 117,430.37

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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.