Home / 209,009.23-288,433.29-122,971.46

Finding the Fourth Proportional to 209,009.23, 288,433.29 and 122,971.46

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Solution

The fourth proportional to 209,009.23, 288,433.29 and 122,971.46 is: 169,700.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,009.23 : 288,433.29 = 122,971.46 : x
  2. Step 2: Convert to fraction form
    209,009.23/288,433.29 = 122,971.46/x
  3. Step 3: Cross multiply
    209,009.23x = 288,433.29 × 122,971.46
  4. Step 4: Simplify right side
    209,009.23x = 35,469,061,802.88
  5. Step 5: Solve for x
    x = 35,469,061,802.88/209,009.23
  6. Step 6: Final answer
    x = 169,700.94

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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.