Home / 156,981.78-235,439.46-51,775.74

Finding the Fourth Proportional to 156,981.78, 235,439.46 and 51,775.74

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Solution

The fourth proportional to 156,981.78, 235,439.46 and 51,775.74 is: 77,652.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,981.78 : 235,439.46 = 51,775.74 : x
  2. Step 2: Convert to fraction form
    156,981.78/235,439.46 = 51,775.74/x
  3. Step 3: Cross multiply
    156,981.78x = 235,439.46 × 51,775.74
  4. Step 4: Simplify right side
    156,981.78x = 12,190,052,266.70
  5. Step 5: Solve for x
    x = 12,190,052,266.70/156,981.78
  6. Step 6: Final answer
    x = 77,652.66

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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.