Home / 209,948.72-314,913.48-67,800.56

Finding the Fourth Proportional to 209,948.72, 314,913.48 and 67,800.56

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Solution

The fourth proportional to 209,948.72, 314,913.48 and 67,800.56 is: 101,697.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,948.72 : 314,913.48 = 67,800.56 : x
  2. Step 2: Convert to fraction form
    209,948.72/314,913.48 = 67,800.56/x
  3. Step 3: Cross multiply
    209,948.72x = 314,913.48 × 67,800.56
  4. Step 4: Simplify right side
    209,948.72x = 21,351,310,295.55
  5. Step 5: Solve for x
    x = 21,351,310,295.55/209,948.72
  6. Step 6: Final answer
    x = 101,697.74

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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.