Home / 189,342.90-284,015.97-89,505.54

Finding the Fourth Proportional to 189,342.90, 284,015.97 and 89,505.54

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Solution

The fourth proportional to 189,342.90, 284,015.97 and 89,505.54 is: 134,259.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,342.90 : 284,015.97 = 89,505.54 : x
  2. Step 2: Convert to fraction form
    189,342.90/284,015.97 = 89,505.54/x
  3. Step 3: Cross multiply
    189,342.90x = 284,015.97 × 89,505.54
  4. Step 4: Simplify right side
    189,342.90x = 25,421,002,763.47
  5. Step 5: Solve for x
    x = 25,421,002,763.47/189,342.90
  6. Step 6: Final answer
    x = 134,259.08

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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.