Home / 118,255.78-177,289.48-68,279.19

Finding the Fourth Proportional to 118,255.78, 177,289.48 and 68,279.19

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Solution

The fourth proportional to 118,255.78, 177,289.48 and 68,279.19 is: 102,364.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,255.78 : 177,289.48 = 68,279.19 : x
  2. Step 2: Convert to fraction form
    118,255.78/177,289.48 = 68,279.19/x
  3. Step 3: Cross multiply
    118,255.78x = 177,289.48 × 68,279.19
  4. Step 4: Simplify right side
    118,255.78x = 12,105,182,089.92
  5. Step 5: Solve for x
    x = 12,105,182,089.92/118,255.78
  6. Step 6: Final answer
    x = 102,364.40

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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.