Home / 103,621.46-142,991.78-58,301.37

Finding the Fourth Proportional to 103,621.46, 142,991.78 and 58,301.37

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Solution

The fourth proportional to 103,621.46, 142,991.78 and 58,301.37 is: 80,452.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,621.46 : 142,991.78 = 58,301.37 : x
  2. Step 2: Convert to fraction form
    103,621.46/142,991.78 = 58,301.37/x
  3. Step 3: Cross multiply
    103,621.46x = 142,991.78 × 58,301.37
  4. Step 4: Simplify right side
    103,621.46x = 8,336,616,381.23
  5. Step 5: Solve for x
    x = 8,336,616,381.23/103,621.46
  6. Step 6: Final answer
    x = 80,452.61

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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.