Home / 103,985.34-143,517.43-58,676.17

Finding the Fourth Proportional to 103,985.34, 143,517.43 and 58,676.17

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Solution

The fourth proportional to 103,985.34, 143,517.43 and 58,676.17 is: 80,983.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,985.34 : 143,517.43 = 58,676.17 : x
  2. Step 2: Convert to fraction form
    103,985.34/143,517.43 = 58,676.17/x
  3. Step 3: Cross multiply
    103,985.34x = 143,517.43 × 58,676.17
  4. Step 4: Simplify right side
    103,985.34x = 8,421,053,120.64
  5. Step 5: Solve for x
    x = 8,421,053,120.64/103,985.34
  6. Step 6: Final answer
    x = 80,983.08

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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.