Home / 119,639.35-165,109.55-65,924.30

Finding the Fourth Proportional to 119,639.35, 165,109.55 and 65,924.30

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Solution

The fourth proportional to 119,639.35, 165,109.55 and 65,924.30 is: 90,979.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,639.35 : 165,109.55 = 65,924.30 : x
  2. Step 2: Convert to fraction form
    119,639.35/165,109.55 = 65,924.30/x
  3. Step 3: Cross multiply
    119,639.35x = 165,109.55 × 65,924.30
  4. Step 4: Simplify right side
    119,639.35x = 10,884,731,507.07
  5. Step 5: Solve for x
    x = 10,884,731,507.07/119,639.35
  6. Step 6: Final answer
    x = 90,979.53

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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.