Home / 105,379.26-145,379.22-69,089.42

Finding the Fourth Proportional to 105,379.26, 145,379.22 and 69,089.42

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Solution

The fourth proportional to 105,379.26, 145,379.22 and 69,089.42 is: 95,314.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,379.26 : 145,379.22 = 69,089.42 : x
  2. Step 2: Convert to fraction form
    105,379.26/145,379.22 = 69,089.42/x
  3. Step 3: Cross multiply
    105,379.26x = 145,379.22 × 69,089.42
  4. Step 4: Simplify right side
    105,379.26x = 10,044,165,262.96
  5. Step 5: Solve for x
    x = 10,044,165,262.96/105,379.26
  6. Step 6: Final answer
    x = 95,314.44

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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.