Home / 114,845.28-172,301.40-70,500.48

Finding the Fourth Proportional to 114,845.28, 172,301.40 and 70,500.48

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Solution

The fourth proportional to 114,845.28, 172,301.40 and 70,500.48 is: 105,771.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,845.28 : 172,301.40 = 70,500.48 : x
  2. Step 2: Convert to fraction form
    114,845.28/172,301.40 = 70,500.48/x
  3. Step 3: Cross multiply
    114,845.28x = 172,301.40 × 70,500.48
  4. Step 4: Simplify right side
    114,845.28x = 12,147,331,404.67
  5. Step 5: Solve for x
    x = 12,147,331,404.67/114,845.28
  6. Step 6: Final answer
    x = 105,771.27

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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.