Home / 190,820.61-263,335.46-105,938.55

Finding the Fourth Proportional to 190,820.61, 263,335.46 and 105,938.55

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Solution

The fourth proportional to 190,820.61, 263,335.46 and 105,938.55 is: 146,196.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,820.61 : 263,335.46 = 105,938.55 : x
  2. Step 2: Convert to fraction form
    190,820.61/263,335.46 = 105,938.55/x
  3. Step 3: Cross multiply
    190,820.61x = 263,335.46 × 105,938.55
  4. Step 4: Simplify right side
    190,820.61x = 27,897,376,266.29
  5. Step 5: Solve for x
    x = 27,897,376,266.29/190,820.61
  6. Step 6: Final answer
    x = 146,196.87

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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.