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Finding the Fourth Proportional to 168,140.61, 252,145.31 and 73,399.77

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Solution

The fourth proportional to 168,140.61, 252,145.31 and 73,399.77 is: 110,071.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,140.61 : 252,145.31 = 73,399.77 : x
  2. Step 2: Convert to fraction form
    168,140.61/252,145.31 = 73,399.77/x
  3. Step 3: Cross multiply
    168,140.61x = 252,145.31 × 73,399.77
  4. Step 4: Simplify right side
    168,140.61x = 18,507,407,393.58
  5. Step 5: Solve for x
    x = 18,507,407,393.58/168,140.61
  6. Step 6: Final answer
    x = 110,071.01

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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.