Home / 149,114.04-205,783.07-85,464.15

Finding the Fourth Proportional to 149,114.04, 205,783.07 and 85,464.15

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Solution

The fourth proportional to 149,114.04, 205,783.07 and 85,464.15 is: 117,943.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,114.04 : 205,783.07 = 85,464.15 : x
  2. Step 2: Convert to fraction form
    149,114.04/205,783.07 = 85,464.15/x
  3. Step 3: Cross multiply
    149,114.04x = 205,783.07 × 85,464.15
  4. Step 4: Simplify right side
    149,114.04x = 17,587,074,734.62
  5. Step 5: Solve for x
    x = 17,587,074,734.62/149,114.04
  6. Step 6: Final answer
    x = 117,943.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.