Home / 196,118.76-270,701.01-128,146.08

Finding the Fourth Proportional to 196,118.76, 270,701.01 and 128,146.08

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Solution

The fourth proportional to 196,118.76, 270,701.01 and 128,146.08 is: 176,878.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,118.76 : 270,701.01 = 128,146.08 : x
  2. Step 2: Convert to fraction form
    196,118.76/270,701.01 = 128,146.08/x
  3. Step 3: Cross multiply
    196,118.76x = 270,701.01 × 128,146.08
  4. Step 4: Simplify right side
    196,118.76x = 34,689,273,283.54
  5. Step 5: Solve for x
    x = 34,689,273,283.54/196,118.76
  6. Step 6: Final answer
    x = 176,878.91

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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.