Home / 209,964.10-314,989.35-69,823.30

Finding the Fourth Proportional to 209,964.10, 314,989.35 and 69,823.30

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Solution

The fourth proportional to 209,964.10, 314,989.35 and 69,823.30 is: 104,749.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,964.10 : 314,989.35 = 69,823.30 : x
  2. Step 2: Convert to fraction form
    209,964.10/314,989.35 = 69,823.30/x
  3. Step 3: Cross multiply
    209,964.10x = 314,989.35 × 69,823.30
  4. Step 4: Simplify right side
    209,964.10x = 21,993,595,881.86
  5. Step 5: Solve for x
    x = 21,993,595,881.86/209,964.10
  6. Step 6: Final answer
    x = 104,749.32

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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.