Home / 124,912.80-172,378.26-68,323.50

Finding the Fourth Proportional to 124,912.80, 172,378.26 and 68,323.50

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Solution

The fourth proportional to 124,912.80, 172,378.26 and 68,323.50 is: 94,285.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,912.80 : 172,378.26 = 68,323.50 : x
  2. Step 2: Convert to fraction form
    124,912.80/172,378.26 = 68,323.50/x
  3. Step 3: Cross multiply
    124,912.80x = 172,378.26 × 68,323.50
  4. Step 4: Simplify right side
    124,912.80x = 11,777,486,047.11
  5. Step 5: Solve for x
    x = 11,777,486,047.11/124,912.80
  6. Step 6: Final answer
    x = 94,285.66

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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.