Home / 118,129.83-177,311.39-51,615.87

Finding the Fourth Proportional to 118,129.83, 177,311.39 and 51,615.87

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Solution

The fourth proportional to 118,129.83, 177,311.39 and 51,615.87 is: 77,474.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,129.83 : 177,311.39 = 51,615.87 : x
  2. Step 2: Convert to fraction form
    118,129.83/177,311.39 = 51,615.87/x
  3. Step 3: Cross multiply
    118,129.83x = 177,311.39 × 51,615.87
  4. Step 4: Simplify right side
    118,129.83x = 9,152,081,397.68
  5. Step 5: Solve for x
    x = 9,152,081,397.68/118,129.83
  6. Step 6: Final answer
    x = 77,474.77

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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.