Home / 146,315.20-201,929.82-105,512.86

Finding the Fourth Proportional to 146,315.20, 201,929.82 and 105,512.86

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Solution

The fourth proportional to 146,315.20, 201,929.82 and 105,512.86 is: 145,618.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,315.20 : 201,929.82 = 105,512.86 : x
  2. Step 2: Convert to fraction form
    146,315.20/201,929.82 = 105,512.86/x
  3. Step 3: Cross multiply
    146,315.20x = 201,929.82 × 105,512.86
  4. Step 4: Simplify right side
    146,315.20x = 21,306,192,827.49
  5. Step 5: Solve for x
    x = 21,306,192,827.49/146,315.20
  6. Step 6: Final answer
    x = 145,618.45

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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.