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Finding the Fourth Proportional to 104,075.40, 143,620.98 and 58,755

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Solution

The fourth proportional to 104,075.40, 143,620.98 and 58,755 is: 81,080.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,075.40 : 143,620.98 = 58,755 : x
  2. Step 2: Convert to fraction form
    104,075.40/143,620.98 = 58,755/x
  3. Step 3: Cross multiply
    104,075.40x = 143,620.98 × 58,755
  4. Step 4: Simplify right side
    104,075.40x = 8,438,450,679.90
  5. Step 5: Solve for x
    x = 8,438,450,679.90/104,075.40
  6. Step 6: Final answer
    x = 81,080.17

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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.