Home / 195,318-292,976.73-128,273.29

Finding the Fourth Proportional to 195,318, 292,976.73 and 128,273.29

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Solution

The fourth proportional to 195,318, 292,976.73 and 128,273.29 is: 192,409.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,318 : 292,976.73 = 128,273.29 : x
  2. Step 2: Convert to fraction form
    195,318/292,976.73 = 128,273.29/x
  3. Step 3: Cross multiply
    195,318x = 292,976.73 × 128,273.29
  4. Step 4: Simplify right side
    195,318x = 37,581,088,318.10
  5. Step 5: Solve for x
    x = 37,581,088,318.10/195,318
  6. Step 6: Final answer
    x = 192,409.75

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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.