Home / 124,745.41-172,139.07-71,019.73

Finding the Fourth Proportional to 124,745.41, 172,139.07 and 71,019.73

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Solution

The fourth proportional to 124,745.41, 172,139.07 and 71,019.73 is: 98,001.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,745.41 : 172,139.07 = 71,019.73 : x
  2. Step 2: Convert to fraction form
    124,745.41/172,139.07 = 71,019.73/x
  3. Step 3: Cross multiply
    124,745.41x = 172,139.07 × 71,019.73
  4. Step 4: Simplify right side
    124,745.41x = 12,225,270,273.85
  5. Step 5: Solve for x
    x = 12,225,270,273.85/124,745.41
  6. Step 6: Final answer
    x = 98,001.76

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1.5x scale

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.