Home / 103,181.80-154,651.74-47,661.16

Finding the Fourth Proportional to 103,181.80, 154,651.74 and 47,661.16

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Solution

The fourth proportional to 103,181.80, 154,651.74 and 47,661.16 is: 71,435.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,181.80 : 154,651.74 = 47,661.16 : x
  2. Step 2: Convert to fraction form
    103,181.80/154,651.74 = 47,661.16/x
  3. Step 3: Cross multiply
    103,181.80x = 154,651.74 × 47,661.16
  4. Step 4: Simplify right side
    103,181.80x = 7,370,881,324.42
  5. Step 5: Solve for x
    x = 7,370,881,324.42/103,181.80
  6. Step 6: Final answer
    x = 71,435.87

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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.