Home / 97,218.70-145,840.20-38,046.72

Finding the Fourth Proportional to 97,218.70, 145,840.20 and 38,046.72

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Solution

The fourth proportional to 97,218.70, 145,840.20 and 38,046.72 is: 57,074.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,218.70 : 145,840.20 = 38,046.72 : x
  2. Step 2: Convert to fraction form
    97,218.70/145,840.20 = 38,046.72/x
  3. Step 3: Cross multiply
    97,218.70x = 145,840.20 × 38,046.72
  4. Step 4: Simplify right side
    97,218.70x = 5,548,741,254.14
  5. Step 5: Solve for x
    x = 5,548,741,254.14/97,218.70
  6. Step 6: Final answer
    x = 57,074.83

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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.