Home / 236,845.70-326,837.43-129,419.45

Finding the Fourth Proportional to 236,845.70, 326,837.43 and 129,419.45

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Solution

The fourth proportional to 236,845.70, 326,837.43 and 129,419.45 is: 178,593.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,845.70 : 326,837.43 = 129,419.45 : x
  2. Step 2: Convert to fraction form
    236,845.70/326,837.43 = 129,419.45/x
  3. Step 3: Cross multiply
    236,845.70x = 326,837.43 × 129,419.45
  4. Step 4: Simplify right side
    236,845.70x = 42,299,118,965.82
  5. Step 5: Solve for x
    x = 42,299,118,965.82/236,845.70
  6. Step 6: Final answer
    x = 178,593.57

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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.