Home / 209,680.32-314,565.84-69,433.92

Finding the Fourth Proportional to 209,680.32, 314,565.84 and 69,433.92

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Solution

The fourth proportional to 209,680.32, 314,565.84 and 69,433.92 is: 104,165.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,680.32 : 314,565.84 = 69,433.92 : x
  2. Step 2: Convert to fraction form
    209,680.32/314,565.84 = 69,433.92/x
  3. Step 3: Cross multiply
    209,680.32x = 314,565.84 × 69,433.92
  4. Step 4: Simplify right side
    209,680.32x = 21,841,539,369.29
  5. Step 5: Solve for x
    x = 21,841,539,369.29/209,680.32
  6. Step 6: Final answer
    x = 104,165.90

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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.