Home / 209,755.32-314,458.80-83,317.56

Finding the Fourth Proportional to 209,755.32, 314,458.80 and 83,317.56

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Solution

The fourth proportional to 209,755.32, 314,458.80 and 83,317.56 is: 124,907.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,755.32 : 314,458.80 = 83,317.56 : x
  2. Step 2: Convert to fraction form
    209,755.32/314,458.80 = 83,317.56/x
  3. Step 3: Cross multiply
    209,755.32x = 314,458.80 × 83,317.56
  4. Step 4: Simplify right side
    209,755.32x = 26,199,939,936.53
  5. Step 5: Solve for x
    x = 26,199,939,936.53/209,755.32
  6. Step 6: Final answer
    x = 124,907.15

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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.