Home / 156,984.70-235,606.65-72,874.30

Finding the Fourth Proportional to 156,984.70, 235,606.65 and 72,874.30

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Solution

The fourth proportional to 156,984.70, 235,606.65 and 72,874.30 is: 109,371.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,984.70 : 235,606.65 = 72,874.30 : x
  2. Step 2: Convert to fraction form
    156,984.70/235,606.65 = 72,874.30/x
  3. Step 3: Cross multiply
    156,984.70x = 235,606.65 × 72,874.30
  4. Step 4: Simplify right side
    156,984.70x = 17,169,669,694.10
  5. Step 5: Solve for x
    x = 17,169,669,694.10/156,984.70
  6. Step 6: Final answer
    x = 109,371.61

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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.