Home / 208,791.07-288,127.68-118,145.39

Finding the Fourth Proportional to 208,791.07, 288,127.68 and 118,145.39

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Solution

The fourth proportional to 208,791.07, 288,127.68 and 118,145.39 is: 163,038.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,791.07 : 288,127.68 = 118,145.39 : x
  2. Step 2: Convert to fraction form
    208,791.07/288,127.68 = 118,145.39/x
  3. Step 3: Cross multiply
    208,791.07x = 288,127.68 × 118,145.39
  4. Step 4: Simplify right side
    208,791.07x = 34,040,955,904.28
  5. Step 5: Solve for x
    x = 34,040,955,904.28/208,791.07
  6. Step 6: Final answer
    x = 163,038.37

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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.