Home / 196,763.18-271,389.35-128,670.93

Finding the Fourth Proportional to 196,763.18, 271,389.35 and 128,670.93

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Solution

The fourth proportional to 196,763.18, 271,389.35 and 128,670.93 is: 177,471.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,763.18 : 271,389.35 = 128,670.93 : x
  2. Step 2: Convert to fraction form
    196,763.18/271,389.35 = 128,670.93/x
  3. Step 3: Cross multiply
    196,763.18x = 271,389.35 × 128,670.93
  4. Step 4: Simplify right side
    196,763.18x = 34,919,920,378.27
  5. Step 5: Solve for x
    x = 34,919,920,378.27/196,763.18
  6. Step 6: Final answer
    x = 177,471.83

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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.