Home / 123,399.02-170,291.18-66,810.39

Finding the Fourth Proportional to 123,399.02, 170,291.18 and 66,810.39

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Solution

The fourth proportional to 123,399.02, 170,291.18 and 66,810.39 is: 92,198.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,399.02 : 170,291.18 = 66,810.39 : x
  2. Step 2: Convert to fraction form
    123,399.02/170,291.18 = 66,810.39/x
  3. Step 3: Cross multiply
    123,399.02x = 170,291.18 × 66,810.39
  4. Step 4: Simplify right side
    123,399.02x = 11,377,219,815.31
  5. Step 5: Solve for x
    x = 11,377,219,815.31/123,399.02
  6. Step 6: Final answer
    x = 92,198.63

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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.