Home / 156,916.98-216,539.46-85,295.52

Finding the Fourth Proportional to 156,916.98, 216,539.46 and 85,295.52

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Solution

The fourth proportional to 156,916.98, 216,539.46 and 85,295.52 is: 117,704.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,916.98 : 216,539.46 = 85,295.52 : x
  2. Step 2: Convert to fraction form
    156,916.98/216,539.46 = 85,295.52/x
  3. Step 3: Cross multiply
    156,916.98x = 216,539.46 × 85,295.52
  4. Step 4: Simplify right side
    156,916.98x = 18,469,845,841.22
  5. Step 5: Solve for x
    x = 18,469,845,841.22/156,916.98
  6. Step 6: Final answer
    x = 117,704.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.