Home / 155,681.33-214,756.25-104,087.30

Finding the Fourth Proportional to 155,681.33, 214,756.25 and 104,087.30

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Solution

The fourth proportional to 155,681.33, 214,756.25 and 104,087.30 is: 143,584.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,681.33 : 214,756.25 = 104,087.30 : x
  2. Step 2: Convert to fraction form
    155,681.33/214,756.25 = 104,087.30/x
  3. Step 3: Cross multiply
    155,681.33x = 214,756.25 × 104,087.30
  4. Step 4: Simplify right side
    155,681.33x = 22,353,396,626.41
  5. Step 5: Solve for x
    x = 22,353,396,626.41/155,681.33
  6. Step 6: Final answer
    x = 143,584.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.