Home / 123,340.40-184,816.20-103,511.60

Finding the Fourth Proportional to 123,340.40, 184,816.20 and 103,511.60

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Solution

The fourth proportional to 123,340.40, 184,816.20 and 103,511.60 is: 155,104.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,340.40 : 184,816.20 = 103,511.60 : x
  2. Step 2: Convert to fraction form
    123,340.40/184,816.20 = 103,511.60/x
  3. Step 3: Cross multiply
    123,340.40x = 184,816.20 × 103,511.60
  4. Step 4: Simplify right side
    123,340.40x = 19,130,620,567.92
  5. Step 5: Solve for x
    x = 19,130,620,567.92/123,340.40
  6. Step 6: Final answer
    x = 155,104.25

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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.