Home / 124,811.28-172,233.48-68,222.64

Finding the Fourth Proportional to 124,811.28, 172,233.48 and 68,222.64

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Solution

The fourth proportional to 124,811.28, 172,233.48 and 68,222.64 is: 94,143.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,811.28 : 172,233.48 = 68,222.64 : x
  2. Step 2: Convert to fraction form
    124,811.28/172,233.48 = 68,222.64/x
  3. Step 3: Cross multiply
    124,811.28x = 172,233.48 × 68,222.64
  4. Step 4: Simplify right side
    124,811.28x = 11,750,222,701.99
  5. Step 5: Solve for x
    x = 11,750,222,701.99/124,811.28
  6. Step 6: Final answer
    x = 94,143.92

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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.