Home / 148,970.75-205,579.64-81,902.75

Finding the Fourth Proportional to 148,970.75, 205,579.64 and 81,902.75

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Solution

The fourth proportional to 148,970.75, 205,579.64 and 81,902.75 is: 113,025.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,970.75 : 205,579.64 = 81,902.75 : x
  2. Step 2: Convert to fraction form
    148,970.75/205,579.64 = 81,902.75/x
  3. Step 3: Cross multiply
    148,970.75x = 205,579.64 × 81,902.75
  4. Step 4: Simplify right side
    148,970.75x = 16,837,537,860.01
  5. Step 5: Solve for x
    x = 16,837,537,860.01/148,970.75
  6. Step 6: Final answer
    x = 113,025.80

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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.