Home / 156,914.94-216,542.76-85,294.96

Finding the Fourth Proportional to 156,914.94, 216,542.76 and 85,294.96

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Solution

The fourth proportional to 156,914.94, 216,542.76 and 85,294.96 is: 117,707.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,914.94 : 216,542.76 = 85,294.96 : x
  2. Step 2: Convert to fraction form
    156,914.94/216,542.76 = 85,294.96/x
  3. Step 3: Cross multiply
    156,914.94x = 216,542.76 × 85,294.96
  4. Step 4: Simplify right side
    156,914.94x = 18,470,005,431.17
  5. Step 5: Solve for x
    x = 18,470,005,431.17/156,914.94
  6. Step 6: Final answer
    x = 117,707.12

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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.