Home / 209,984.76-314,475.35-115,072.20

Finding the Fourth Proportional to 209,984.76, 314,475.35 and 115,072.20

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Solution

The fourth proportional to 209,984.76, 314,475.35 and 115,072.20 is: 172,333.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,984.76 : 314,475.35 = 115,072.20 : x
  2. Step 2: Convert to fraction form
    209,984.76/314,475.35 = 115,072.20/x
  3. Step 3: Cross multiply
    209,984.76x = 314,475.35 × 115,072.20
  4. Step 4: Simplify right side
    209,984.76x = 36,187,369,794.91
  5. Step 5: Solve for x
    x = 36,187,369,794.91/209,984.76
  6. Step 6: Final answer
    x = 172,333.32

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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.