Home / 113,438.20-170,222.10-43,367.80

Finding the Fourth Proportional to 113,438.20, 170,222.10 and 43,367.80

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Solution

The fourth proportional to 113,438.20, 170,222.10 and 43,367.80 is: 65,076.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,438.20 : 170,222.10 = 43,367.80 : x
  2. Step 2: Convert to fraction form
    113,438.20/170,222.10 = 43,367.80/x
  3. Step 3: Cross multiply
    113,438.20x = 170,222.10 × 43,367.80
  4. Step 4: Simplify right side
    113,438.20x = 7,382,157,988.38
  5. Step 5: Solve for x
    x = 7,382,157,988.38/113,438.20
  6. Step 6: Final answer
    x = 65,076.47

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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.