Home / 196,018.68-270,406.07-128,075.43

Finding the Fourth Proportional to 196,018.68, 270,406.07 and 128,075.43

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Solution

The fourth proportional to 196,018.68, 270,406.07 and 128,075.43 is: 176,678.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,018.68 : 270,406.07 = 128,075.43 : x
  2. Step 2: Convert to fraction form
    196,018.68/270,406.07 = 128,075.43/x
  3. Step 3: Cross multiply
    196,018.68x = 270,406.07 × 128,075.43
  4. Step 4: Simplify right side
    196,018.68x = 34,632,373,689.86
  5. Step 5: Solve for x
    x = 34,632,373,689.86/196,018.68
  6. Step 6: Final answer
    x = 176,678.95

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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.