Home / 209,203.91-288,701.76-113,710.34

Finding the Fourth Proportional to 209,203.91, 288,701.76 and 113,710.34

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Solution

The fourth proportional to 209,203.91, 288,701.76 and 113,710.34 is: 156,920.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,203.91 : 288,701.76 = 113,710.34 : x
  2. Step 2: Convert to fraction form
    209,203.91/288,701.76 = 113,710.34/x
  3. Step 3: Cross multiply
    209,203.91x = 288,701.76 × 113,710.34
  4. Step 4: Simplify right side
    209,203.91x = 32,828,375,288.20
  5. Step 5: Solve for x
    x = 32,828,375,288.20/209,203.91
  6. Step 6: Final answer
    x = 156,920.47

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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.