Home / 148,801.68-205,381.71-85,176.18

Finding the Fourth Proportional to 148,801.68, 205,381.71 and 85,176.18

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Solution

The fourth proportional to 148,801.68, 205,381.71 and 85,176.18 is: 117,563.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,801.68 : 205,381.71 = 85,176.18 : x
  2. Step 2: Convert to fraction form
    148,801.68/205,381.71 = 85,176.18/x
  3. Step 3: Cross multiply
    148,801.68x = 205,381.71 × 85,176.18
  4. Step 4: Simplify right side
    148,801.68x = 17,493,629,499.67
  5. Step 5: Solve for x
    x = 17,493,629,499.67/148,801.68
  6. Step 6: Final answer
    x = 117,563.39

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1.5x scale

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.