Home / 124,729.95-172,127.02-68,141.73

Finding the Fourth Proportional to 124,729.95, 172,127.02 and 68,141.73

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Solution

The fourth proportional to 124,729.95, 172,127.02 and 68,141.73 is: 94,035.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,729.95 : 172,127.02 = 68,141.73 : x
  2. Step 2: Convert to fraction form
    124,729.95/172,127.02 = 68,141.73/x
  3. Step 3: Cross multiply
    124,729.95x = 172,127.02 × 68,141.73
  4. Step 4: Simplify right side
    124,729.95x = 11,729,032,922.54
  5. Step 5: Solve for x
    x = 11,729,032,922.54/124,729.95
  6. Step 6: Final answer
    x = 94,035.42

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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.