Home / 209,911.08-314,888.82-76,803.24

Finding the Fourth Proportional to 209,911.08, 314,888.82 and 76,803.24

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Solution

The fourth proportional to 209,911.08, 314,888.82 and 76,803.24 is: 115,212.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,911.08 : 314,888.82 = 76,803.24 : x
  2. Step 2: Convert to fraction form
    209,911.08/314,888.82 = 76,803.24/x
  3. Step 3: Cross multiply
    209,911.08x = 314,888.82 × 76,803.24
  4. Step 4: Simplify right side
    209,911.08x = 24,184,481,615.78
  5. Step 5: Solve for x
    x = 24,184,481,615.78/209,911.08
  6. Step 6: Final answer
    x = 115,212.98

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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.