Home / 178,740.12-268,109.90-45,620.36

Finding the Fourth Proportional to 178,740.12, 268,109.90 and 45,620.36

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Solution

The fourth proportional to 178,740.12, 268,109.90 and 45,620.36 is: 68,430.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,740.12 : 268,109.90 = 45,620.36 : x
  2. Step 2: Convert to fraction form
    178,740.12/268,109.90 = 45,620.36/x
  3. Step 3: Cross multiply
    178,740.12x = 268,109.90 × 45,620.36
  4. Step 4: Simplify right side
    178,740.12x = 12,231,271,273.52
  5. Step 5: Solve for x
    x = 12,231,271,273.52/178,740.12
  6. Step 6: Final answer
    x = 68,430.48

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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.