Home / 138,742.37-191,464.46-75,080.16

Finding the Fourth Proportional to 138,742.37, 191,464.46 and 75,080.16

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Solution

The fourth proportional to 138,742.37, 191,464.46 and 75,080.16 is: 103,610.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,742.37 : 191,464.46 = 75,080.16 : x
  2. Step 2: Convert to fraction form
    138,742.37/191,464.46 = 75,080.16/x
  3. Step 3: Cross multiply
    138,742.37x = 191,464.46 × 75,080.16
  4. Step 4: Simplify right side
    138,742.37x = 14,375,183,158.08
  5. Step 5: Solve for x
    x = 14,375,183,158.08/138,742.37
  6. Step 6: Final answer
    x = 103,610.62

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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.