Home / 238,683.10-329,384.39-129,786.66

Finding the Fourth Proportional to 238,683.10, 329,384.39 and 129,786.66

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Solution

The fourth proportional to 238,683.10, 329,384.39 and 129,786.66 is: 179,106.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,683.10 : 329,384.39 = 129,786.66 : x
  2. Step 2: Convert to fraction form
    238,683.10/329,384.39 = 129,786.66/x
  3. Step 3: Cross multiply
    238,683.10x = 329,384.39 × 129,786.66
  4. Step 4: Simplify right side
    238,683.10x = 42,749,699,331.09
  5. Step 5: Solve for x
    x = 42,749,699,331.09/238,683.10
  6. Step 6: Final answer
    x = 179,106.52

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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.