Home / 101,423.20-139,969.33-58,409.22

Finding the Fourth Proportional to 101,423.20, 139,969.33 and 58,409.22

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Solution

The fourth proportional to 101,423.20, 139,969.33 and 58,409.22 is: 80,607.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,423.20 : 139,969.33 = 58,409.22 : x
  2. Step 2: Convert to fraction form
    101,423.20/139,969.33 = 58,409.22/x
  3. Step 3: Cross multiply
    101,423.20x = 139,969.33 × 58,409.22
  4. Step 4: Simplify right side
    101,423.20x = 8,175,499,389.22
  5. Step 5: Solve for x
    x = 8,175,499,389.22/101,423.20
  6. Step 6: Final answer
    x = 80,607.78

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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.