Home / 209,485.23-314,277.06-69,243.86

Finding the Fourth Proportional to 209,485.23, 314,277.06 and 69,243.86

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Solution

The fourth proportional to 209,485.23, 314,277.06 and 69,243.86 is: 103,882.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,485.23 : 314,277.06 = 69,243.86 : x
  2. Step 2: Convert to fraction form
    209,485.23/314,277.06 = 69,243.86/x
  3. Step 3: Cross multiply
    209,485.23x = 314,277.06 × 69,243.86
  4. Step 4: Simplify right side
    209,485.23x = 21,761,755,172.47
  5. Step 5: Solve for x
    x = 21,761,755,172.47/209,485.23
  6. Step 6: Final answer
    x = 103,882.05

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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.