Home / 236,491.82-326,365.62-129,068.74

Finding the Fourth Proportional to 236,491.82, 326,365.62 and 129,068.74

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Solution

The fourth proportional to 236,491.82, 326,365.62 and 129,068.74 is: 178,118.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,491.82 : 326,365.62 = 129,068.74 : x
  2. Step 2: Convert to fraction form
    236,491.82/326,365.62 = 129,068.74/x
  3. Step 3: Cross multiply
    236,491.82x = 326,365.62 × 129,068.74
  4. Step 4: Simplify right side
    236,491.82x = 42,123,597,720.89
  5. Step 5: Solve for x
    x = 42,123,597,720.89/236,491.82
  6. Step 6: Final answer
    x = 178,118.63

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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.