Home / 156,945.78-235,385.46-51,739.74

Finding the Fourth Proportional to 156,945.78, 235,385.46 and 51,739.74

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Solution

The fourth proportional to 156,945.78, 235,385.46 and 51,739.74 is: 77,598.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,945.78 : 235,385.46 = 51,739.74 : x
  2. Step 2: Convert to fraction form
    156,945.78/235,385.46 = 51,739.74/x
  3. Step 3: Cross multiply
    156,945.78x = 235,385.46 × 51,739.74
  4. Step 4: Simplify right side
    156,945.78x = 12,178,782,500.18
  5. Step 5: Solve for x
    x = 12,178,782,500.18/156,945.78
  6. Step 6: Final answer
    x = 77,598.66

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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.