Home / 208,845.32-288,137.94-118,192.28

Finding the Fourth Proportional to 208,845.32, 288,137.94 and 118,192.28

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Solution

The fourth proportional to 208,845.32, 288,137.94 and 118,192.28 is: 163,066.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,845.32 : 288,137.94 = 118,192.28 : x
  2. Step 2: Convert to fraction form
    208,845.32/288,137.94 = 118,192.28/x
  3. Step 3: Cross multiply
    208,845.32x = 288,137.94 × 118,192.28
  4. Step 4: Simplify right side
    208,845.32x = 34,055,680,083.10
  5. Step 5: Solve for x
    x = 34,055,680,083.10/208,845.32
  6. Step 6: Final answer
    x = 163,066.52

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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.