Home / 209,243.25-288,754.98-113,749.28

Finding the Fourth Proportional to 209,243.25, 288,754.98 and 113,749.28

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Solution

The fourth proportional to 209,243.25, 288,754.98 and 113,749.28 is: 156,973.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,243.25 : 288,754.98 = 113,749.28 : x
  2. Step 2: Convert to fraction form
    209,243.25/288,754.98 = 113,749.28/x
  3. Step 3: Cross multiply
    209,243.25x = 288,754.98 × 113,749.28
  4. Step 4: Simplify right side
    209,243.25x = 32,845,670,283.91
  5. Step 5: Solve for x
    x = 32,845,670,283.91/209,243.25
  6. Step 6: Final answer
    x = 156,973.62

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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.