Home / 120,281.74-165,986.30-66,563.54

Finding the Fourth Proportional to 120,281.74, 165,986.30 and 66,563.54

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Solution

The fourth proportional to 120,281.74, 165,986.30 and 66,563.54 is: 91,856.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,281.74 : 165,986.30 = 66,563.54 : x
  2. Step 2: Convert to fraction form
    120,281.74/165,986.30 = 66,563.54/x
  3. Step 3: Cross multiply
    120,281.74x = 165,986.30 × 66,563.54
  4. Step 4: Simplify right side
    120,281.74x = 11,048,635,719.50
  5. Step 5: Solve for x
    x = 11,048,635,719.50/120,281.74
  6. Step 6: Final answer
    x = 91,856.30

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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.