Home / 124,639.09-186,983.28-45,754

Finding the Fourth Proportional to 124,639.09, 186,983.28 and 45,754

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Solution

The fourth proportional to 124,639.09, 186,983.28 and 45,754 is: 68,640.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,639.09 : 186,983.28 = 45,754 : x
  2. Step 2: Convert to fraction form
    124,639.09/186,983.28 = 45,754/x
  3. Step 3: Cross multiply
    124,639.09x = 186,983.28 × 45,754
  4. Step 4: Simplify right side
    124,639.09x = 8,555,232,993.12
  5. Step 5: Solve for x
    x = 8,555,232,993.12/124,639.09
  6. Step 6: Final answer
    x = 68,640.05

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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.