Home / 105,240.42-145,279.66-67,052.33

Finding the Fourth Proportional to 105,240.42, 145,279.66 and 67,052.33

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Solution

The fourth proportional to 105,240.42, 145,279.66 and 67,052.33 is: 92,562.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,240.42 : 145,279.66 = 67,052.33 : x
  2. Step 2: Convert to fraction form
    105,240.42/145,279.66 = 67,052.33/x
  3. Step 3: Cross multiply
    105,240.42x = 145,279.66 × 67,052.33
  4. Step 4: Simplify right side
    105,240.42x = 9,741,339,369.35
  5. Step 5: Solve for x
    x = 9,741,339,369.35/105,240.42
  6. Step 6: Final answer
    x = 92,562.72

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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.