Home / 131,386.35-196,938.45-68,143.17

Finding the Fourth Proportional to 131,386.35, 196,938.45 and 68,143.17

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Solution

The fourth proportional to 131,386.35, 196,938.45 and 68,143.17 is: 102,141.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,386.35 : 196,938.45 = 68,143.17 : x
  2. Step 2: Convert to fraction form
    131,386.35/196,938.45 = 68,143.17/x
  3. Step 3: Cross multiply
    131,386.35x = 196,938.45 × 68,143.17
  4. Step 4: Simplify right side
    131,386.35x = 13,420,010,277.89
  5. Step 5: Solve for x
    x = 13,420,010,277.89/131,386.35
  6. Step 6: Final answer
    x = 102,141.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.