Home / 156,828.24-235,123.32-80,844.90

Finding the Fourth Proportional to 156,828.24, 235,123.32 and 80,844.90

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Solution

The fourth proportional to 156,828.24, 235,123.32 and 80,844.90 is: 121,205.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,828.24 : 235,123.32 = 80,844.90 : x
  2. Step 2: Convert to fraction form
    156,828.24/235,123.32 = 80,844.90/x
  3. Step 3: Cross multiply
    156,828.24x = 235,123.32 × 80,844.90
  4. Step 4: Simplify right side
    156,828.24x = 19,008,521,293.07
  5. Step 5: Solve for x
    x = 19,008,521,293.07/156,828.24
  6. Step 6: Final answer
    x = 121,205.98

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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.