Home / 101,402.24-139,940.34-58,388.12

Finding the Fourth Proportional to 101,402.24, 139,940.34 and 58,388.12

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Solution

The fourth proportional to 101,402.24, 139,940.34 and 58,388.12 is: 80,578.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,402.24 : 139,940.34 = 58,388.12 : x
  2. Step 2: Convert to fraction form
    101,402.24/139,940.34 = 58,388.12/x
  3. Step 3: Cross multiply
    101,402.24x = 139,940.34 × 58,388.12
  4. Step 4: Simplify right side
    101,402.24x = 8,170,853,364.76
  5. Step 5: Solve for x
    x = 8,170,853,364.76/101,402.24
  6. Step 6: Final answer
    x = 80,578.63

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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.