Home / 105,846.40-146,075.70-69,974.20

Finding the Fourth Proportional to 105,846.40, 146,075.70 and 69,974.20

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Solution

The fourth proportional to 105,846.40, 146,075.70 and 69,974.20 is: 96,569.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,846.40 : 146,075.70 = 69,974.20 : x
  2. Step 2: Convert to fraction form
    105,846.40/146,075.70 = 69,974.20/x
  3. Step 3: Cross multiply
    105,846.40x = 146,075.70 × 69,974.20
  4. Step 4: Simplify right side
    105,846.40x = 10,221,530,246.94
  5. Step 5: Solve for x
    x = 10,221,530,246.94/105,846.40
  6. Step 6: Final answer
    x = 96,569.47

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1.5x scale

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.