Home / 188,328.64-259,894.08-103,447.36

Finding the Fourth Proportional to 188,328.64, 259,894.08 and 103,447.36

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Solution

The fourth proportional to 188,328.64, 259,894.08 and 103,447.36 is: 142,757.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,328.64 : 259,894.08 = 103,447.36 : x
  2. Step 2: Convert to fraction form
    188,328.64/259,894.08 = 103,447.36/x
  3. Step 3: Cross multiply
    188,328.64x = 259,894.08 × 103,447.36
  4. Step 4: Simplify right side
    188,328.64x = 26,885,356,455.63
  5. Step 5: Solve for x
    x = 26,885,356,455.63/188,328.64
  6. Step 6: Final answer
    x = 142,757.66

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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.