Home / 101,401.24-139,938.96-58,387.12

Finding the Fourth Proportional to 101,401.24, 139,938.96 and 58,387.12

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Solution

The fourth proportional to 101,401.24, 139,938.96 and 58,387.12 is: 80,577.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,401.24 : 139,938.96 = 58,387.12 : x
  2. Step 2: Convert to fraction form
    101,401.24/139,938.96 = 58,387.12/x
  3. Step 3: Cross multiply
    101,401.24x = 139,938.96 × 58,387.12
  4. Step 4: Simplify right side
    101,401.24x = 8,170,632,850.20
  5. Step 5: Solve for x
    x = 8,170,632,850.20/101,401.24
  6. Step 6: Final answer
    x = 80,577.25

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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.