Home / 226,129.12-339,193.68-85,887.40

Finding the Fourth Proportional to 226,129.12, 339,193.68 and 85,887.40

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Solution

The fourth proportional to 226,129.12, 339,193.68 and 85,887.40 is: 128,831.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,129.12 : 339,193.68 = 85,887.40 : x
  2. Step 2: Convert to fraction form
    226,129.12/339,193.68 = 85,887.40/x
  3. Step 3: Cross multiply
    226,129.12x = 339,193.68 × 85,887.40
  4. Step 4: Simplify right side
    226,129.12x = 29,132,463,271.63
  5. Step 5: Solve for x
    x = 29,132,463,271.63/226,129.12
  6. Step 6: Final answer
    x = 128,831.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.