Home / 238,589.54-329,259.86-129,701.20

Finding the Fourth Proportional to 238,589.54, 329,259.86 and 129,701.20

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Solution

The fourth proportional to 238,589.54, 329,259.86 and 129,701.20 is: 178,991.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,589.54 : 329,259.86 = 129,701.20 : x
  2. Step 2: Convert to fraction form
    238,589.54/329,259.86 = 129,701.20/x
  3. Step 3: Cross multiply
    238,589.54x = 329,259.86 × 129,701.20
  4. Step 4: Simplify right side
    238,589.54x = 42,705,398,953.83
  5. Step 5: Solve for x
    x = 42,705,398,953.83/238,589.54
  6. Step 6: Final answer
    x = 178,991.08

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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.