Home / 209,708.28-314,645.58-76,597.20

Finding the Fourth Proportional to 209,708.28, 314,645.58 and 76,597.20

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Solution

The fourth proportional to 209,708.28, 314,645.58 and 76,597.20 is: 114,926.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,708.28 : 314,645.58 = 76,597.20 : x
  2. Step 2: Convert to fraction form
    209,708.28/314,645.58 = 76,597.20/x
  3. Step 3: Cross multiply
    209,708.28x = 314,645.58 × 76,597.20
  4. Step 4: Simplify right side
    209,708.28x = 24,100,970,420.38
  5. Step 5: Solve for x
    x = 24,100,970,420.38/209,708.28
  6. Step 6: Final answer
    x = 114,926.17

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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.