Home / 116,778.72-161,154.80-69,055.68

Finding the Fourth Proportional to 116,778.72, 161,154.80 and 69,055.68

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Solution

The fourth proportional to 116,778.72, 161,154.80 and 69,055.68 is: 95,296.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,778.72 : 161,154.80 = 69,055.68 : x
  2. Step 2: Convert to fraction form
    116,778.72/161,154.80 = 69,055.68/x
  3. Step 3: Cross multiply
    116,778.72x = 161,154.80 × 69,055.68
  4. Step 4: Simplify right side
    116,778.72x = 11,128,654,299.26
  5. Step 5: Solve for x
    x = 11,128,654,299.26/116,778.72
  6. Step 6: Final answer
    x = 95,296.94

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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.