Home / 156,803.20-235,180.80-51,622.40

Finding the Fourth Proportional to 156,803.20, 235,180.80 and 51,622.40

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Solution

The fourth proportional to 156,803.20, 235,180.80 and 51,622.40 is: 77,425.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,803.20 : 235,180.80 = 51,622.40 : x
  2. Step 2: Convert to fraction form
    156,803.20/235,180.80 = 51,622.40/x
  3. Step 3: Cross multiply
    156,803.20x = 235,180.80 × 51,622.40
  4. Step 4: Simplify right side
    156,803.20x = 12,140,597,329.92
  5. Step 5: Solve for x
    x = 12,140,597,329.92/156,803.20
  6. Step 6: Final answer
    x = 77,425.70

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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.