Home / 189,069.48-261,125.82-128,535.03

Finding the Fourth Proportional to 189,069.48, 261,125.82 and 128,535.03

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Solution

The fourth proportional to 189,069.48, 261,125.82 and 128,535.03 is: 177,521.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,069.48 : 261,125.82 = 128,535.03 : x
  2. Step 2: Convert to fraction form
    189,069.48/261,125.82 = 128,535.03/x
  3. Step 3: Cross multiply
    189,069.48x = 261,125.82 × 128,535.03
  4. Step 4: Simplify right side
    189,069.48x = 33,563,815,107.47
  5. Step 5: Solve for x
    x = 33,563,815,107.47/189,069.48
  6. Step 6: Final answer
    x = 177,521.06

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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.