Home / 189,712.86-261,852.93-109,148.64

Finding the Fourth Proportional to 189,712.86, 261,852.93 and 109,148.64

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Solution

The fourth proportional to 189,712.86, 261,852.93 and 109,148.64 is: 150,653.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,712.86 : 261,852.93 = 109,148.64 : x
  2. Step 2: Convert to fraction form
    189,712.86/261,852.93 = 109,148.64/x
  3. Step 3: Cross multiply
    189,712.86x = 261,852.93 × 109,148.64
  4. Step 4: Simplify right side
    189,712.86x = 28,580,891,189.52
  5. Step 5: Solve for x
    x = 28,580,891,189.52/189,712.86
  6. Step 6: Final answer
    x = 150,653.42

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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.