Home / 88,197.07-121,644.89-61,018.37

Finding the Fourth Proportional to 88,197.07, 121,644.89 and 61,018.37

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Solution

The fourth proportional to 88,197.07, 121,644.89 and 61,018.37 is: 84,158.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,197.07 : 121,644.89 = 61,018.37 : x
  2. Step 2: Convert to fraction form
    88,197.07/121,644.89 = 61,018.37/x
  3. Step 3: Cross multiply
    88,197.07x = 121,644.89 × 61,018.37
  4. Step 4: Simplify right side
    88,197.07x = 7,422,572,906.63
  5. Step 5: Solve for x
    x = 7,422,572,906.63/88,197.07
  6. Step 6: Final answer
    x = 84,158.95

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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.