Home / 209,563.12-314,168.35-91,145.27

Finding the Fourth Proportional to 209,563.12, 314,168.35 and 91,145.27

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Solution

The fourth proportional to 209,563.12, 314,168.35 and 91,145.27 is: 136,641.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,563.12 : 314,168.35 = 91,145.27 : x
  2. Step 2: Convert to fraction form
    209,563.12/314,168.35 = 91,145.27/x
  3. Step 3: Cross multiply
    209,563.12x = 314,168.35 × 91,145.27
  4. Step 4: Simplify right side
    209,563.12x = 28,634,959,200.14
  5. Step 5: Solve for x
    x = 28,634,959,200.14/209,563.12
  6. Step 6: Final answer
    x = 136,641.22

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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.