Home / 142,197.54-213,143.22-75,570.66

Finding the Fourth Proportional to 142,197.54, 213,143.22 and 75,570.66

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Solution

The fourth proportional to 142,197.54, 213,143.22 and 75,570.66 is: 113,274.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,197.54 : 213,143.22 = 75,570.66 : x
  2. Step 2: Convert to fraction form
    142,197.54/213,143.22 = 75,570.66/x
  3. Step 3: Cross multiply
    142,197.54x = 213,143.22 × 75,570.66
  4. Step 4: Simplify right side
    142,197.54x = 16,107,373,809.93
  5. Step 5: Solve for x
    x = 16,107,373,809.93/142,197.54
  6. Step 6: Final answer
    x = 113,274.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.