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Finding the Fourth Proportional to 172,900.74, 259,288.68 and 73,068.64

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Solution

The fourth proportional to 172,900.74, 259,288.68 and 73,068.64 is: 109,576.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,900.74 : 259,288.68 = 73,068.64 : x
  2. Step 2: Convert to fraction form
    172,900.74/259,288.68 = 73,068.64/x
  3. Step 3: Cross multiply
    172,900.74x = 259,288.68 × 73,068.64
  4. Step 4: Simplify right side
    172,900.74x = 18,945,871,215.00
  5. Step 5: Solve for x
    x = 18,945,871,215.00/172,900.74
  6. Step 6: Final answer
    x = 109,576.58

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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.