Home / 156,979.78-235,436.46-51,773.74

Finding the Fourth Proportional to 156,979.78, 235,436.46 and 51,773.74

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Solution

The fourth proportional to 156,979.78, 235,436.46 and 51,773.74 is: 77,649.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,979.78 : 235,436.46 = 51,773.74 : x
  2. Step 2: Convert to fraction form
    156,979.78/235,436.46 = 51,773.74/x
  3. Step 3: Cross multiply
    156,979.78x = 235,436.46 × 51,773.74
  4. Step 4: Simplify right side
    156,979.78x = 12,189,426,066.56
  5. Step 5: Solve for x
    x = 12,189,426,066.56/156,979.78
  6. Step 6: Final answer
    x = 77,649.66

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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.