Home / 105,817.91-146,030.49-58,075.70

Finding the Fourth Proportional to 105,817.91, 146,030.49 and 58,075.70

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Solution

The fourth proportional to 105,817.91, 146,030.49 and 58,075.70 is: 80,145.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,817.91 : 146,030.49 = 58,075.70 : x
  2. Step 2: Convert to fraction form
    105,817.91/146,030.49 = 58,075.70/x
  3. Step 3: Cross multiply
    105,817.91x = 146,030.49 × 58,075.70
  4. Step 4: Simplify right side
    105,817.91x = 8,480,822,197.94
  5. Step 5: Solve for x
    x = 8,480,822,197.94/105,817.91
  6. Step 6: Final answer
    x = 80,145.44

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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.