Home / 103,688.35-143,092.59-58,367.95

Finding the Fourth Proportional to 103,688.35, 143,092.59 and 58,367.95

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Solution

The fourth proportional to 103,688.35, 143,092.59 and 58,367.95 is: 80,549.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,688.35 : 143,092.59 = 58,367.95 : x
  2. Step 2: Convert to fraction form
    103,688.35/143,092.59 = 58,367.95/x
  3. Step 3: Cross multiply
    103,688.35x = 143,092.59 × 58,367.95
  4. Step 4: Simplify right side
    103,688.35x = 8,352,020,561.88
  5. Step 5: Solve for x
    x = 8,352,020,561.88/103,688.35
  6. Step 6: Final answer
    x = 80,549.27

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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.