Home / 165,643.36-248,333.40-72,083.50

Finding the Fourth Proportional to 165,643.36, 248,333.40 and 72,083.50

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Solution

The fourth proportional to 165,643.36, 248,333.40 and 72,083.50 is: 108,067.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,643.36 : 248,333.40 = 72,083.50 : x
  2. Step 2: Convert to fraction form
    165,643.36/248,333.40 = 72,083.50/x
  3. Step 3: Cross multiply
    165,643.36x = 248,333.40 × 72,083.50
  4. Step 4: Simplify right side
    165,643.36x = 17,900,740,638.90
  5. Step 5: Solve for x
    x = 17,900,740,638.90/165,643.36
  6. Step 6: Final answer
    x = 108,067.96

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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.