Home / 103,760.40-143,183.48-61,322.88

Finding the Fourth Proportional to 103,760.40, 143,183.48 and 61,322.88

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Solution

The fourth proportional to 103,760.40, 143,183.48 and 61,322.88 is: 84,622.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,760.40 : 143,183.48 = 61,322.88 : x
  2. Step 2: Convert to fraction form
    103,760.40/143,183.48 = 61,322.88/x
  3. Step 3: Cross multiply
    103,760.40x = 143,183.48 × 61,322.88
  4. Step 4: Simplify right side
    103,760.40x = 8,780,423,362.02
  5. Step 5: Solve for x
    x = 8,780,423,362.02/103,760.40
  6. Step 6: Final answer
    x = 84,622.10

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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.