Home / 132,549.32-182,912.58-72,120.21

Finding the Fourth Proportional to 132,549.32, 182,912.58 and 72,120.21

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Solution

The fourth proportional to 132,549.32, 182,912.58 and 72,120.21 is: 99,522.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,549.32 : 182,912.58 = 72,120.21 : x
  2. Step 2: Convert to fraction form
    132,549.32/182,912.58 = 72,120.21/x
  3. Step 3: Cross multiply
    132,549.32x = 182,912.58 × 72,120.21
  4. Step 4: Simplify right side
    132,549.32x = 13,191,692,766.68
  5. Step 5: Solve for x
    x = 13,191,692,766.68/132,549.32
  6. Step 6: Final answer
    x = 99,522.90

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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.