Home / 156,855.90-235,197.45-51,620.70

Finding the Fourth Proportional to 156,855.90, 235,197.45 and 51,620.70

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Solution

The fourth proportional to 156,855.90, 235,197.45 and 51,620.70 is: 77,402.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,855.90 : 235,197.45 = 51,620.70 : x
  2. Step 2: Convert to fraction form
    156,855.90/235,197.45 = 51,620.70/x
  3. Step 3: Cross multiply
    156,855.90x = 235,197.45 × 51,620.70
  4. Step 4: Simplify right side
    156,855.90x = 12,141,057,007.22
  5. Step 5: Solve for x
    x = 12,141,057,007.22/156,855.90
  6. Step 6: Final answer
    x = 77,402.62

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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.