Home / 124,745.09-172,147.55-68,156.46

Finding the Fourth Proportional to 124,745.09, 172,147.55 and 68,156.46

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Solution

The fourth proportional to 124,745.09, 172,147.55 and 68,156.46 is: 94,055.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,745.09 : 172,147.55 = 68,156.46 : x
  2. Step 2: Convert to fraction form
    124,745.09/172,147.55 = 68,156.46/x
  3. Step 3: Cross multiply
    124,745.09x = 172,147.55 × 68,156.46
  4. Step 4: Simplify right side
    124,745.09x = 11,732,967,264.89
  5. Step 5: Solve for x
    x = 11,732,967,264.89/124,745.09
  6. Step 6: Final answer
    x = 94,055.55

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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.