Home / 156,971.90-235,371.45-51,736.70

Finding the Fourth Proportional to 156,971.90, 235,371.45 and 51,736.70

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Solution

The fourth proportional to 156,971.90, 235,371.45 and 51,736.70 is: 77,576.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,971.90 : 235,371.45 = 51,736.70 : x
  2. Step 2: Convert to fraction form
    156,971.90/235,371.45 = 51,736.70/x
  3. Step 3: Cross multiply
    156,971.90x = 235,371.45 × 51,736.70
  4. Step 4: Simplify right side
    156,971.90x = 12,177,342,097.22
  5. Step 5: Solve for x
    x = 12,177,342,097.22/156,971.90
  6. Step 6: Final answer
    x = 77,576.57

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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.