Home / 156,977.40-235,460.90-68,231.02

Finding the Fourth Proportional to 156,977.40, 235,460.90 and 68,231.02

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Solution

The fourth proportional to 156,977.40, 235,460.90 and 68,231.02 is: 102,344.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,977.40 : 235,460.90 = 68,231.02 : x
  2. Step 2: Convert to fraction form
    156,977.40/235,460.90 = 68,231.02/x
  3. Step 3: Cross multiply
    156,977.40x = 235,460.90 × 68,231.02
  4. Step 4: Simplify right side
    156,977.40x = 16,065,737,377.12
  5. Step 5: Solve for x
    x = 16,065,737,377.12/156,977.40
  6. Step 6: Final answer
    x = 102,344.27

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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.