Home / 209,555.99-314,380.86-76,436.25

Finding the Fourth Proportional to 209,555.99, 314,380.86 and 76,436.25

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Solution

The fourth proportional to 209,555.99, 314,380.86 and 76,436.25 is: 114,671.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,555.99 : 314,380.86 = 76,436.25 : x
  2. Step 2: Convert to fraction form
    209,555.99/314,380.86 = 76,436.25/x
  3. Step 3: Cross multiply
    209,555.99x = 314,380.86 × 76,436.25
  4. Step 4: Simplify right side
    209,555.99x = 24,030,094,010.18
  5. Step 5: Solve for x
    x = 24,030,094,010.18/209,555.99
  6. Step 6: Final answer
    x = 114,671.47

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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.