Home / 278,423.04-417,634.56-68,060.64

Finding the Fourth Proportional to 278,423.04, 417,634.56 and 68,060.64

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Solution

The fourth proportional to 278,423.04, 417,634.56 and 68,060.64 is: 102,090.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,423.04 : 417,634.56 = 68,060.64 : x
  2. Step 2: Convert to fraction form
    278,423.04/417,634.56 = 68,060.64/x
  3. Step 3: Cross multiply
    278,423.04x = 417,634.56 × 68,060.64
  4. Step 4: Simplify right side
    278,423.04x = 28,424,475,439.72
  5. Step 5: Solve for x
    x = 28,424,475,439.72/278,423.04
  6. Step 6: Final answer
    x = 102,090.96

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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.