Home / 131,795.52-197,460-109,478.40

Finding the Fourth Proportional to 131,795.52, 197,460 and 109,478.40

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Solution

The fourth proportional to 131,795.52, 197,460 and 109,478.40 is: 164,023.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,795.52 : 197,460 = 109,478.40 : x
  2. Step 2: Convert to fraction form
    131,795.52/197,460 = 109,478.40/x
  3. Step 3: Cross multiply
    131,795.52x = 197,460 × 109,478.40
  4. Step 4: Simplify right side
    131,795.52x = 21,617,604,864
  5. Step 5: Solve for x
    x = 21,617,604,864/131,795.52
  6. Step 6: Final answer
    x = 164,023.82

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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.