Home / 157,301.40-236,105.70-78,504.60

Finding the Fourth Proportional to 157,301.40, 236,105.70 and 78,504.60

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Solution

The fourth proportional to 157,301.40, 236,105.70 and 78,504.60 is: 117,833.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,301.40 : 236,105.70 = 78,504.60 : x
  2. Step 2: Convert to fraction form
    157,301.40/236,105.70 = 78,504.60/x
  3. Step 3: Cross multiply
    157,301.40x = 236,105.70 × 78,504.60
  4. Step 4: Simplify right side
    157,301.40x = 18,535,383,536.22
  5. Step 5: Solve for x
    x = 18,535,383,536.22/157,301.40
  6. Step 6: Final answer
    x = 117,833.56

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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.