Home / 113,872.60-170,808.90-91,729.23

Finding the Fourth Proportional to 113,872.60, 170,808.90 and 91,729.23

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Solution

The fourth proportional to 113,872.60, 170,808.90 and 91,729.23 is: 137,593.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,872.60 : 170,808.90 = 91,729.23 : x
  2. Step 2: Convert to fraction form
    113,872.60/170,808.90 = 91,729.23/x
  3. Step 3: Cross multiply
    113,872.60x = 170,808.90 × 91,729.23
  4. Step 4: Simplify right side
    113,872.60x = 15,668,168,020.10
  5. Step 5: Solve for x
    x = 15,668,168,020.10/113,872.60
  6. Step 6: Final answer
    x = 137,593.84

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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.