Home / 103,015.36-154,575.78-49,041.12

Finding the Fourth Proportional to 103,015.36, 154,575.78 and 49,041.12

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Solution

The fourth proportional to 103,015.36, 154,575.78 and 49,041.12 is: 73,586.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,015.36 : 154,575.78 = 49,041.12 : x
  2. Step 2: Convert to fraction form
    103,015.36/154,575.78 = 49,041.12/x
  3. Step 3: Cross multiply
    103,015.36x = 154,575.78 × 49,041.12
  4. Step 4: Simplify right side
    103,015.36x = 7,580,569,771.83
  5. Step 5: Solve for x
    x = 7,580,569,771.83/103,015.36
  6. Step 6: Final answer
    x = 73,586.79

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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.