Home / 208,765.20-288,110.22-118,121.16

Finding the Fourth Proportional to 208,765.20, 288,110.22 and 118,121.16

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Solution

The fourth proportional to 208,765.20, 288,110.22 and 118,121.16 is: 163,015.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,765.20 : 288,110.22 = 118,121.16 : x
  2. Step 2: Convert to fraction form
    208,765.20/288,110.22 = 118,121.16/x
  3. Step 3: Cross multiply
    208,765.20x = 288,110.22 × 118,121.16
  4. Step 4: Simplify right side
    208,765.20x = 34,031,913,394.26
  5. Step 5: Solve for x
    x = 34,031,913,394.26/208,765.20
  6. Step 6: Final answer
    x = 163,015.26

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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.