Home / 156,789.80-235,206.30-68,040.80

Finding the Fourth Proportional to 156,789.80, 235,206.30 and 68,040.80

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Solution

The fourth proportional to 156,789.80, 235,206.30 and 68,040.80 is: 102,070.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,789.80 : 235,206.30 = 68,040.80 : x
  2. Step 2: Convert to fraction form
    156,789.80/235,206.30 = 68,040.80/x
  3. Step 3: Cross multiply
    156,789.80x = 235,206.30 × 68,040.80
  4. Step 4: Simplify right side
    156,789.80x = 16,003,624,817.04
  5. Step 5: Solve for x
    x = 16,003,624,817.04/156,789.80
  6. Step 6: Final answer
    x = 102,070.57

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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.