Home / 188,280.64-259,829.10-103,399.51

Finding the Fourth Proportional to 188,280.64, 259,829.10 and 103,399.51

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Solution

The fourth proportional to 188,280.64, 259,829.10 and 103,399.51 is: 142,692.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,280.64 : 259,829.10 = 103,399.51 : x
  2. Step 2: Convert to fraction form
    188,280.64/259,829.10 = 103,399.51/x
  3. Step 3: Cross multiply
    188,280.64x = 259,829.10 × 103,399.51
  4. Step 4: Simplify right side
    188,280.64x = 26,866,201,623.74
  5. Step 5: Solve for x
    x = 26,866,201,623.74/188,280.64
  6. Step 6: Final answer
    x = 142,692.32

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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.