Home / 431,705.04-647,507.75-116,137.14

Finding the Fourth Proportional to 431,705.04, 647,507.75 and 116,137.14

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Solution

The fourth proportional to 431,705.04, 647,507.75 and 116,137.14 is: 174,192.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,705.04 : 647,507.75 = 116,137.14 : x
  2. Step 2: Convert to fraction form
    431,705.04/647,507.75 = 116,137.14/x
  3. Step 3: Cross multiply
    431,705.04x = 647,507.75 × 116,137.14
  4. Step 4: Simplify right side
    431,705.04x = 75,199,697,632.15
  5. Step 5: Solve for x
    x = 75,199,697,632.15/431,705.04
  6. Step 6: Final answer
    x = 174,192.31

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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.