Home / 123,392.02-170,279.94-66,802.90

Finding the Fourth Proportional to 123,392.02, 170,279.94 and 66,802.90

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Solution

The fourth proportional to 123,392.02, 170,279.94 and 66,802.90 is: 92,187.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,392.02 : 170,279.94 = 66,802.90 : x
  2. Step 2: Convert to fraction form
    123,392.02/170,279.94 = 66,802.90/x
  3. Step 3: Cross multiply
    123,392.02x = 170,279.94 × 66,802.90
  4. Step 4: Simplify right side
    123,392.02x = 11,375,193,803.83
  5. Step 5: Solve for x
    x = 11,375,193,803.83/123,392.02
  6. Step 6: Final answer
    x = 92,187.43

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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.