Home / 119,815.52-165,339.60-66,103.52

Finding the Fourth Proportional to 119,815.52, 165,339.60 and 66,103.52

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Solution

The fourth proportional to 119,815.52, 165,339.60 and 66,103.52 is: 91,219.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,815.52 : 165,339.60 = 66,103.52 : x
  2. Step 2: Convert to fraction form
    119,815.52/165,339.60 = 66,103.52/x
  3. Step 3: Cross multiply
    119,815.52x = 165,339.60 × 66,103.52
  4. Step 4: Simplify right side
    119,815.52x = 10,929,529,555.39
  5. Step 5: Solve for x
    x = 10,929,529,555.39/119,815.52
  6. Step 6: Final answer
    x = 91,219.65

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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.