Home / 116,869.16-161,290.78-69,137.86

Finding the Fourth Proportional to 116,869.16, 161,290.78 and 69,137.86

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Solution

The fourth proportional to 116,869.16, 161,290.78 and 69,137.86 is: 95,416.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,869.16 : 161,290.78 = 69,137.86 : x
  2. Step 2: Convert to fraction form
    116,869.16/161,290.78 = 69,137.86/x
  3. Step 3: Cross multiply
    116,869.16x = 161,290.78 × 69,137.86
  4. Step 4: Simplify right side
    116,869.16x = 11,151,299,366.93
  5. Step 5: Solve for x
    x = 11,151,299,366.93/116,869.16
  6. Step 6: Final answer
    x = 95,416.95

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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.