Home / 105,370.33-145,408.10-57,622.65

Finding the Fourth Proportional to 105,370.33, 145,408.10 and 57,622.65

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Solution

The fourth proportional to 105,370.33, 145,408.10 and 57,622.65 is: 79,517.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,370.33 : 145,408.10 = 57,622.65 : x
  2. Step 2: Convert to fraction form
    105,370.33/145,408.10 = 57,622.65/x
  3. Step 3: Cross multiply
    105,370.33x = 145,408.10 × 57,622.65
  4. Step 4: Simplify right side
    105,370.33x = 8,378,800,053.47
  5. Step 5: Solve for x
    x = 8,378,800,053.47/105,370.33
  6. Step 6: Final answer
    x = 79,517.64

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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.