Home / 118,261.78-177,298.46-68,285.20

Finding the Fourth Proportional to 118,261.78, 177,298.46 and 68,285.20

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Solution

The fourth proportional to 118,261.78, 177,298.46 and 68,285.20 is: 102,373.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,261.78 : 177,298.46 = 68,285.20 : x
  2. Step 2: Convert to fraction form
    118,261.78/177,298.46 = 68,285.20/x
  3. Step 3: Cross multiply
    118,261.78x = 177,298.46 × 68,285.20
  4. Step 4: Simplify right side
    118,261.78x = 12,106,860,800.79
  5. Step 5: Solve for x
    x = 12,106,860,800.79/118,261.78
  6. Step 6: Final answer
    x = 102,373.40

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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.