Home / 150,530.13-207,729.87-86,866.56

Finding the Fourth Proportional to 150,530.13, 207,729.87 and 86,866.56

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Solution

The fourth proportional to 150,530.13, 207,729.87 and 86,866.56 is: 119,874.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,530.13 : 207,729.87 = 86,866.56 : x
  2. Step 2: Convert to fraction form
    150,530.13/207,729.87 = 86,866.56/x
  3. Step 3: Cross multiply
    150,530.13x = 207,729.87 × 86,866.56
  4. Step 4: Simplify right side
    150,530.13x = 18,044,778,890.40
  5. Step 5: Solve for x
    x = 18,044,778,890.40/150,530.13
  6. Step 6: Final answer
    x = 119,874.86

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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.