Home / 103,759.22-143,190.36-58,438.91

Finding the Fourth Proportional to 103,759.22, 143,190.36 and 58,438.91

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Solution

The fourth proportional to 103,759.22, 143,190.36 and 58,438.91 is: 80,647.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,759.22 : 143,190.36 = 58,438.91 : x
  2. Step 2: Convert to fraction form
    103,759.22/143,190.36 = 58,438.91/x
  3. Step 3: Cross multiply
    103,759.22x = 143,190.36 × 58,438.91
  4. Step 4: Simplify right side
    103,759.22x = 8,367,887,844.96
  5. Step 5: Solve for x
    x = 8,367,887,844.96/103,759.22
  6. Step 6: Final answer
    x = 80,647.18

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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.