Home / 223,000.29-307,740.56-121,025.72

Finding the Fourth Proportional to 223,000.29, 307,740.56 and 121,025.72

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Solution

The fourth proportional to 223,000.29, 307,740.56 and 121,025.72 is: 167,015.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,000.29 : 307,740.56 = 121,025.72 : x
  2. Step 2: Convert to fraction form
    223,000.29/307,740.56 = 121,025.72/x
  3. Step 3: Cross multiply
    223,000.29x = 307,740.56 × 121,025.72
  4. Step 4: Simplify right side
    223,000.29x = 37,244,522,847.20
  5. Step 5: Solve for x
    x = 37,244,522,847.20/223,000.29
  6. Step 6: Final answer
    x = 167,015.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.