Home / 209,479.23-289,087.65-113,992.38

Finding the Fourth Proportional to 209,479.23, 289,087.65 and 113,992.38

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Solution

The fourth proportional to 209,479.23, 289,087.65 and 113,992.38 is: 157,312.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,479.23 : 289,087.65 = 113,992.38 : x
  2. Step 2: Convert to fraction form
    209,479.23/289,087.65 = 113,992.38/x
  3. Step 3: Cross multiply
    209,479.23x = 289,087.65 × 113,992.38
  4. Step 4: Simplify right side
    209,479.23x = 32,953,789,252.11
  5. Step 5: Solve for x
    x = 32,953,789,252.11/209,479.23
  6. Step 6: Final answer
    x = 157,312.92

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1.5x scale

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.