Home / 103,987.33-143,503.91-58,665.18

Finding the Fourth Proportional to 103,987.33, 143,503.91 and 58,665.18

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Solution

The fourth proportional to 103,987.33, 143,503.91 and 58,665.18 is: 80,958.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,987.33 : 143,503.91 = 58,665.18 : x
  2. Step 2: Convert to fraction form
    103,987.33/143,503.91 = 58,665.18/x
  3. Step 3: Cross multiply
    103,987.33x = 143,503.91 × 58,665.18
  4. Step 4: Simplify right side
    103,987.33x = 8,418,682,710.85
  5. Step 5: Solve for x
    x = 8,418,682,710.85/103,987.33
  6. Step 6: Final answer
    x = 80,958.74

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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.