Home / 156,910.20-235,365.30-51,703.80

Finding the Fourth Proportional to 156,910.20, 235,365.30 and 51,703.80

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Solution

The fourth proportional to 156,910.20, 235,365.30 and 51,703.80 is: 77,555.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,910.20 : 235,365.30 = 51,703.80 : x
  2. Step 2: Convert to fraction form
    156,910.20/235,365.30 = 51,703.80/x
  3. Step 3: Cross multiply
    156,910.20x = 235,365.30 × 51,703.80
  4. Step 4: Simplify right side
    156,910.20x = 12,169,280,398.14
  5. Step 5: Solve for x
    x = 12,169,280,398.14/156,910.20
  6. Step 6: Final answer
    x = 77,555.70

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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.