Home / 189,144.02-261,019.32-104,259.26

Finding the Fourth Proportional to 189,144.02, 261,019.32 and 104,259.26

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Solution

The fourth proportional to 189,144.02, 261,019.32 and 104,259.26 is: 143,878.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,144.02 : 261,019.32 = 104,259.26 : x
  2. Step 2: Convert to fraction form
    189,144.02/261,019.32 = 104,259.26/x
  3. Step 3: Cross multiply
    189,144.02x = 261,019.32 × 104,259.26
  4. Step 4: Simplify right side
    189,144.02x = 27,213,681,148.90
  5. Step 5: Solve for x
    x = 27,213,681,148.90/189,144.02
  6. Step 6: Final answer
    x = 143,878.09

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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.