Home / 196,020.43-270,408.57-128,077.17

Finding the Fourth Proportional to 196,020.43, 270,408.57 and 128,077.17

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Solution

The fourth proportional to 196,020.43, 270,408.57 and 128,077.17 is: 176,681.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,020.43 : 270,408.57 = 128,077.17 : x
  2. Step 2: Convert to fraction form
    196,020.43/270,408.57 = 128,077.17/x
  3. Step 3: Cross multiply
    196,020.43x = 270,408.57 × 128,077.17
  4. Step 4: Simplify right side
    196,020.43x = 34,633,164,416.07
  5. Step 5: Solve for x
    x = 34,633,164,416.07/196,020.43
  6. Step 6: Final answer
    x = 176,681.40

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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.