Home / 105,778.90-158,519.13-58,415.32

Finding the Fourth Proportional to 105,778.90, 158,519.13 and 58,415.32

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Solution

The fourth proportional to 105,778.90, 158,519.13 and 58,415.32 is: 87,540.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,778.90 : 158,519.13 = 58,415.32 : x
  2. Step 2: Convert to fraction form
    105,778.90/158,519.13 = 58,415.32/x
  3. Step 3: Cross multiply
    105,778.90x = 158,519.13 × 58,415.32
  4. Step 4: Simplify right side
    105,778.90x = 9,259,945,705.07
  5. Step 5: Solve for x
    x = 9,259,945,705.07/105,778.90
  6. Step 6: Final answer
    x = 87,540.57

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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.