Home / 121,722.60-182,583.90-71,826.60

Finding the Fourth Proportional to 121,722.60, 182,583.90 and 71,826.60

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Solution

The fourth proportional to 121,722.60, 182,583.90 and 71,826.60 is: 107,739.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,722.60 : 182,583.90 = 71,826.60 : x
  2. Step 2: Convert to fraction form
    121,722.60/182,583.90 = 71,826.60/x
  3. Step 3: Cross multiply
    121,722.60x = 182,583.90 × 71,826.60
  4. Step 4: Simplify right side
    121,722.60x = 13,114,380,751.74
  5. Step 5: Solve for x
    x = 13,114,380,751.74/121,722.60
  6. Step 6: Final answer
    x = 107,739.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.