Home / 124,715.44-172,111.09-68,130.46

Finding the Fourth Proportional to 124,715.44, 172,111.09 and 68,130.46

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Solution

The fourth proportional to 124,715.44, 172,111.09 and 68,130.46 is: 94,022.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,715.44 : 172,111.09 = 68,130.46 : x
  2. Step 2: Convert to fraction form
    124,715.44/172,111.09 = 68,130.46/x
  3. Step 3: Cross multiply
    124,715.44x = 172,111.09 × 68,130.46
  4. Step 4: Simplify right side
    124,715.44x = 11,726,007,732.80
  5. Step 5: Solve for x
    x = 11,726,007,732.80/124,715.44
  6. Step 6: Final answer
    x = 94,022.10

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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.