Home / 209,816.67-314,351.85-120,886.41

Finding the Fourth Proportional to 209,816.67, 314,351.85 and 120,886.41

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Solution

The fourth proportional to 209,816.67, 314,351.85 and 120,886.41 is: 181,114.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,816.67 : 314,351.85 = 120,886.41 : x
  2. Step 2: Convert to fraction form
    209,816.67/314,351.85 = 120,886.41/x
  3. Step 3: Cross multiply
    209,816.67x = 314,351.85 × 120,886.41
  4. Step 4: Simplify right side
    209,816.67x = 38,000,866,623.36
  5. Step 5: Solve for x
    x = 38,000,866,623.36/209,816.67
  6. Step 6: Final answer
    x = 181,114.62

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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.