Home / 123,280.21-170,125.02-68,833.22

Finding the Fourth Proportional to 123,280.21, 170,125.02 and 68,833.22

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Solution

The fourth proportional to 123,280.21, 170,125.02 and 68,833.22 is: 94,988.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,280.21 : 170,125.02 = 68,833.22 : x
  2. Step 2: Convert to fraction form
    123,280.21/170,125.02 = 68,833.22/x
  3. Step 3: Cross multiply
    123,280.21x = 170,125.02 × 68,833.22
  4. Step 4: Simplify right side
    123,280.21x = 11,710,252,078.54
  5. Step 5: Solve for x
    x = 11,710,252,078.54/123,280.21
  6. Step 6: Final answer
    x = 94,988.91

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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.