Home / 152,020.56-209,789.70-84,036.45

Finding the Fourth Proportional to 152,020.56, 209,789.70 and 84,036.45

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Solution

The fourth proportional to 152,020.56, 209,789.70 and 84,036.45 is: 115,971.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,020.56 : 209,789.70 = 84,036.45 : x
  2. Step 2: Convert to fraction form
    152,020.56/209,789.70 = 84,036.45/x
  3. Step 3: Cross multiply
    152,020.56x = 209,789.70 × 84,036.45
  4. Step 4: Simplify right side
    152,020.56x = 17,629,981,634.57
  5. Step 5: Solve for x
    x = 17,629,981,634.57/152,020.56
  6. Step 6: Final answer
    x = 115,971.03

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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.