Home / 189,448.23-284,021.46-109,395.31

Finding the Fourth Proportional to 189,448.23, 284,021.46 and 109,395.31

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Solution

The fourth proportional to 189,448.23, 284,021.46 and 109,395.31 is: 164,005.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,448.23 : 284,021.46 = 109,395.31 : x
  2. Step 2: Convert to fraction form
    189,448.23/284,021.46 = 109,395.31/x
  3. Step 3: Cross multiply
    189,448.23x = 284,021.46 × 109,395.31
  4. Step 4: Simplify right side
    189,448.23x = 31,070,615,663.35
  5. Step 5: Solve for x
    x = 31,070,615,663.35/189,448.23
  6. Step 6: Final answer
    x = 164,005.84

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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.