Home / 128,544.12-192,855.56-57,526.53

Finding the Fourth Proportional to 128,544.12, 192,855.56 and 57,526.53

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Solution

The fourth proportional to 128,544.12, 192,855.56 and 57,526.53 is: 86,307.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,544.12 : 192,855.56 = 57,526.53 : x
  2. Step 2: Convert to fraction form
    128,544.12/192,855.56 = 57,526.53/x
  3. Step 3: Cross multiply
    128,544.12x = 192,855.56 × 57,526.53
  4. Step 4: Simplify right side
    128,544.12x = 11,094,310,870.37
  5. Step 5: Solve for x
    x = 11,094,310,870.37/128,544.12
  6. Step 6: Final answer
    x = 86,307.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.