Home / 103,908.75-143,385.42-58,597.89

Finding the Fourth Proportional to 103,908.75, 143,385.42 and 58,597.89

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Solution

The fourth proportional to 103,908.75, 143,385.42 and 58,597.89 is: 80,860.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,908.75 : 143,385.42 = 58,597.89 : x
  2. Step 2: Convert to fraction form
    103,908.75/143,385.42 = 58,597.89/x
  3. Step 3: Cross multiply
    103,908.75x = 143,385.42 × 58,597.89
  4. Step 4: Simplify right side
    103,908.75x = 8,402,083,068.76
  5. Step 5: Solve for x
    x = 8,402,083,068.76/103,908.75
  6. Step 6: Final answer
    x = 80,860.21

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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.