Home / 119,579.79-165,020.09-65,864.81

Finding the Fourth Proportional to 119,579.79, 165,020.09 and 65,864.81

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Solution

The fourth proportional to 119,579.79, 165,020.09 and 65,864.81 is: 90,893.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,579.79 : 165,020.09 = 65,864.81 : x
  2. Step 2: Convert to fraction form
    119,579.79/165,020.09 = 65,864.81/x
  3. Step 3: Cross multiply
    119,579.79x = 165,020.09 × 65,864.81
  4. Step 4: Simplify right side
    119,579.79x = 10,869,016,213.59
  5. Step 5: Solve for x
    x = 10,869,016,213.59/119,579.79
  6. Step 6: Final answer
    x = 90,893.42

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1.5x scale

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.