Home / 90,301.20-135,327.24-68,090.16

Finding the Fourth Proportional to 90,301.20, 135,327.24 and 68,090.16

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Solution

The fourth proportional to 90,301.20, 135,327.24 and 68,090.16 is: 102,041.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,301.20 : 135,327.24 = 68,090.16 : x
  2. Step 2: Convert to fraction form
    90,301.20/135,327.24 = 68,090.16/x
  3. Step 3: Cross multiply
    90,301.20x = 135,327.24 × 68,090.16
  4. Step 4: Simplify right side
    90,301.20x = 9,214,453,423.96
  5. Step 5: Solve for x
    x = 9,214,453,423.96/90,301.20
  6. Step 6: Final answer
    x = 102,041.32

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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.