Home / 199,907.23-275,845.35-128,384.14

Finding the Fourth Proportional to 199,907.23, 275,845.35 and 128,384.14

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Solution

The fourth proportional to 199,907.23, 275,845.35 and 128,384.14 is: 177,153.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,907.23 : 275,845.35 = 128,384.14 : x
  2. Step 2: Convert to fraction form
    199,907.23/275,845.35 = 128,384.14/x
  3. Step 3: Cross multiply
    199,907.23x = 275,845.35 × 128,384.14
  4. Step 4: Simplify right side
    199,907.23x = 35,414,168,032.75
  5. Step 5: Solve for x
    x = 35,414,168,032.75/199,907.23
  6. Step 6: Final answer
    x = 177,153.01

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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.