Home / 125,150.12-172,707.78-68,561.52

Finding the Fourth Proportional to 125,150.12, 172,707.78 and 68,561.52

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Solution

The fourth proportional to 125,150.12, 172,707.78 and 68,561.52 is: 94,615.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,150.12 : 172,707.78 = 68,561.52 : x
  2. Step 2: Convert to fraction form
    125,150.12/172,707.78 = 68,561.52/x
  3. Step 3: Cross multiply
    125,150.12x = 172,707.78 × 68,561.52
  4. Step 4: Simplify right side
    125,150.12x = 11,841,107,912.63
  5. Step 5: Solve for x
    x = 11,841,107,912.63/125,150.12
  6. Step 6: Final answer
    x = 94,615.23

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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.