Home / 272,390.64-408,344.04-106,139.76

Finding the Fourth Proportional to 272,390.64, 408,344.04 and 106,139.76

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Solution

The fourth proportional to 272,390.64, 408,344.04 and 106,139.76 is: 159,115.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,390.64 : 408,344.04 = 106,139.76 : x
  2. Step 2: Convert to fraction form
    272,390.64/408,344.04 = 106,139.76/x
  3. Step 3: Cross multiply
    272,390.64x = 408,344.04 × 106,139.76
  4. Step 4: Simplify right side
    272,390.64x = 43,341,538,403.03
  5. Step 5: Solve for x
    x = 43,341,538,403.03/272,390.64
  6. Step 6: Final answer
    x = 159,115.37

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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.