Home / 98,163.06-147,288.33-51,405

Finding the Fourth Proportional to 98,163.06, 147,288.33 and 51,405

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Solution

The fourth proportional to 98,163.06, 147,288.33 and 51,405 is: 77,130.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,163.06 : 147,288.33 = 51,405 : x
  2. Step 2: Convert to fraction form
    98,163.06/147,288.33 = 51,405/x
  3. Step 3: Cross multiply
    98,163.06x = 147,288.33 × 51,405
  4. Step 4: Simplify right side
    98,163.06x = 7,571,356,603.65
  5. Step 5: Solve for x
    x = 7,571,356,603.65/98,163.06
  6. Step 6: Final answer
    x = 77,130.41

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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.