Home / 162,321.37-243,486.20-76,912.18

Finding the Fourth Proportional to 162,321.37, 243,486.20 and 76,912.18

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Solution

The fourth proportional to 162,321.37, 243,486.20 and 76,912.18 is: 115,370.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,321.37 : 243,486.20 = 76,912.18 : x
  2. Step 2: Convert to fraction form
    162,321.37/243,486.20 = 76,912.18/x
  3. Step 3: Cross multiply
    162,321.37x = 243,486.20 × 76,912.18
  4. Step 4: Simplify right side
    162,321.37x = 18,727,055,395.09
  5. Step 5: Solve for x
    x = 18,727,055,395.09/162,321.37
  6. Step 6: Final answer
    x = 115,370.24

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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.