Home / 105,657.06-145,805.87-57,910.29

Finding the Fourth Proportional to 105,657.06, 145,805.87 and 57,910.29

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Solution

The fourth proportional to 105,657.06, 145,805.87 and 57,910.29 is: 79,915.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,657.06 : 145,805.87 = 57,910.29 : x
  2. Step 2: Convert to fraction form
    105,657.06/145,805.87 = 57,910.29/x
  3. Step 3: Cross multiply
    105,657.06x = 145,805.87 × 57,910.29
  4. Step 4: Simplify right side
    105,657.06x = 8,443,660,633.56
  5. Step 5: Solve for x
    x = 8,443,660,633.56/105,657.06
  6. Step 6: Final answer
    x = 79,915.73

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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.