Home / 189,782.52-261,925.92-109,208.40

Finding the Fourth Proportional to 189,782.52, 261,925.92 and 109,208.40

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Solution

The fourth proportional to 189,782.52, 261,925.92 and 109,208.40 is: 150,722.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,782.52 : 261,925.92 = 109,208.40 : x
  2. Step 2: Convert to fraction form
    189,782.52/261,925.92 = 109,208.40/x
  3. Step 3: Cross multiply
    189,782.52x = 261,925.92 × 109,208.40
  4. Step 4: Simplify right side
    189,782.52x = 28,604,510,641.73
  5. Step 5: Solve for x
    x = 28,604,510,641.73/189,782.52
  6. Step 6: Final answer
    x = 150,722.58

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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.