Home / 208,822.11-288,158.54-122,784.58

Finding the Fourth Proportional to 208,822.11, 288,158.54 and 122,784.58

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Solution

The fourth proportional to 208,822.11, 288,158.54 and 122,784.58 is: 169,433.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,822.11 : 288,158.54 = 122,784.58 : x
  2. Step 2: Convert to fraction form
    208,822.11/288,158.54 = 122,784.58/x
  3. Step 3: Cross multiply
    208,822.11x = 288,158.54 × 122,784.58
  4. Step 4: Simplify right side
    208,822.11x = 35,381,425,307.31
  5. Step 5: Solve for x
    x = 35,381,425,307.31/208,822.11
  6. Step 6: Final answer
    x = 169,433.33

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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.