Home / 140,621.81-210,949.07-49,409.18

Finding the Fourth Proportional to 140,621.81, 210,949.07 and 49,409.18

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Solution

The fourth proportional to 140,621.81, 210,949.07 and 49,409.18 is: 74,119.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,621.81 : 210,949.07 = 49,409.18 : x
  2. Step 2: Convert to fraction form
    140,621.81/210,949.07 = 49,409.18/x
  3. Step 3: Cross multiply
    140,621.81x = 210,949.07 × 49,409.18
  4. Step 4: Simplify right side
    140,621.81x = 10,422,819,639.24
  5. Step 5: Solve for x
    x = 10,422,819,639.24/140,621.81
  6. Step 6: Final answer
    x = 74,119.51

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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.