Home / 103,208.16-142,295.40-66,845.36

Finding the Fourth Proportional to 103,208.16, 142,295.40 and 66,845.36

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Solution

The fourth proportional to 103,208.16, 142,295.40 and 66,845.36 is: 92,161.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,208.16 : 142,295.40 = 66,845.36 : x
  2. Step 2: Convert to fraction form
    103,208.16/142,295.40 = 66,845.36/x
  3. Step 3: Cross multiply
    103,208.16x = 142,295.40 × 66,845.36
  4. Step 4: Simplify right side
    103,208.16x = 9,511,787,239.34
  5. Step 5: Solve for x
    x = 9,511,787,239.34/103,208.16
  6. Step 6: Final answer
    x = 92,161.19

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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.