Home / 189,534.25-284,438.56-74,145.77

Finding the Fourth Proportional to 189,534.25, 284,438.56 and 74,145.77

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Solution

The fourth proportional to 189,534.25, 284,438.56 and 74,145.77 is: 111,272.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,534.25 : 284,438.56 = 74,145.77 : x
  2. Step 2: Convert to fraction form
    189,534.25/284,438.56 = 74,145.77/x
  3. Step 3: Cross multiply
    189,534.25x = 284,438.56 × 74,145.77
  4. Step 4: Simplify right side
    189,534.25x = 21,089,914,758.13
  5. Step 5: Solve for x
    x = 21,089,914,758.13/189,534.25
  6. Step 6: Final answer
    x = 111,272.31

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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.