Home / 103,985.35-143,517.43-58,676.18

Finding the Fourth Proportional to 103,985.35, 143,517.43 and 58,676.18

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Solution

The fourth proportional to 103,985.35, 143,517.43 and 58,676.18 is: 80,983.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,985.35 : 143,517.43 = 58,676.18 : x
  2. Step 2: Convert to fraction form
    103,985.35/143,517.43 = 58,676.18/x
  3. Step 3: Cross multiply
    103,985.35x = 143,517.43 × 58,676.18
  4. Step 4: Simplify right side
    103,985.35x = 8,421,054,050.33
  5. Step 5: Solve for x
    x = 8,421,054,050.33/103,985.35
  6. Step 6: Final answer
    x = 80,983.08

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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.