Home / 156,915.40-235,227.30-109,530.40

Finding the Fourth Proportional to 156,915.40, 235,227.30 and 109,530.40

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Solution

The fourth proportional to 156,915.40, 235,227.30 and 109,530.40 is: 164,193.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,915.40 : 235,227.30 = 109,530.40 : x
  2. Step 2: Convert to fraction form
    156,915.40/235,227.30 = 109,530.40/x
  3. Step 3: Cross multiply
    156,915.40x = 235,227.30 × 109,530.40
  4. Step 4: Simplify right side
    156,915.40x = 25,764,540,259.92
  5. Step 5: Solve for x
    x = 25,764,540,259.92/156,915.40
  6. Step 6: Final answer
    x = 164,193.83

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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.