Home / 209,835.32-314,845.92-109,971.63

Finding the Fourth Proportional to 209,835.32, 314,845.92 and 109,971.63

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Solution

The fourth proportional to 209,835.32, 314,845.92 and 109,971.63 is: 165,006.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,835.32 : 314,845.92 = 109,971.63 : x
  2. Step 2: Convert to fraction form
    209,835.32/314,845.92 = 109,971.63/x
  3. Step 3: Cross multiply
    209,835.32x = 314,845.92 × 109,971.63
  4. Step 4: Simplify right side
    209,835.32x = 34,624,119,021.25
  5. Step 5: Solve for x
    x = 34,624,119,021.25/209,835.32
  6. Step 6: Final answer
    x = 165,006.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.