Home / 209,322.46-288,867.90-113,830.66

Finding the Fourth Proportional to 209,322.46, 288,867.90 and 113,830.66

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Solution

The fourth proportional to 209,322.46, 288,867.90 and 113,830.66 is: 157,087.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,322.46 : 288,867.90 = 113,830.66 : x
  2. Step 2: Convert to fraction form
    209,322.46/288,867.90 = 113,830.66/x
  3. Step 3: Cross multiply
    209,322.46x = 288,867.90 × 113,830.66
  4. Step 4: Simplify right side
    209,322.46x = 32,882,023,709.81
  5. Step 5: Solve for x
    x = 32,882,023,709.81/209,322.46
  6. Step 6: Final answer
    x = 157,087.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.