Home / 355,836.65-533,782.34-103,120.60

Finding the Fourth Proportional to 355,836.65, 533,782.34 and 103,120.60

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Solution

The fourth proportional to 355,836.65, 533,782.34 and 103,120.60 is: 154,688.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,836.65 : 533,782.34 = 103,120.60 : x
  2. Step 2: Convert to fraction form
    355,836.65/533,782.34 = 103,120.60/x
  3. Step 3: Cross multiply
    355,836.65x = 533,782.34 × 103,120.60
  4. Step 4: Simplify right side
    355,836.65x = 55,043,955,170.20
  5. Step 5: Solve for x
    x = 55,043,955,170.20/355,836.65
  6. Step 6: Final answer
    x = 154,688.83

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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.