Home / 156,628.40-234,964.20-56,764.40

Finding the Fourth Proportional to 156,628.40, 234,964.20 and 56,764.40

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Solution

The fourth proportional to 156,628.40, 234,964.20 and 56,764.40 is: 85,154.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,628.40 : 234,964.20 = 56,764.40 : x
  2. Step 2: Convert to fraction form
    156,628.40/234,964.20 = 56,764.40/x
  3. Step 3: Cross multiply
    156,628.40x = 234,964.20 × 56,764.40
  4. Step 4: Simplify right side
    156,628.40x = 13,337,601,834.48
  5. Step 5: Solve for x
    x = 13,337,601,834.48/156,628.40
  6. Step 6: Final answer
    x = 85,154.43

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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.