Home / 105,764.16-145,954.53-58,017.62

Finding the Fourth Proportional to 105,764.16, 145,954.53 and 58,017.62

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Solution

The fourth proportional to 105,764.16, 145,954.53 and 58,017.62 is: 80,064.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,764.16 : 145,954.53 = 58,017.62 : x
  2. Step 2: Convert to fraction form
    105,764.16/145,954.53 = 58,017.62/x
  3. Step 3: Cross multiply
    105,764.16x = 145,954.53 × 58,017.62
  4. Step 4: Simplify right side
    105,764.16x = 8,467,933,729.05
  5. Step 5: Solve for x
    x = 8,467,933,729.05/105,764.16
  6. Step 6: Final answer
    x = 80,064.30

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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.