Home / 238,705.64-329,406.90-136,727.72

Finding the Fourth Proportional to 238,705.64, 329,406.90 and 136,727.72

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Solution

The fourth proportional to 238,705.64, 329,406.90 and 136,727.72 is: 188,680.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,705.64 : 329,406.90 = 136,727.72 : x
  2. Step 2: Convert to fraction form
    238,705.64/329,406.90 = 136,727.72/x
  3. Step 3: Cross multiply
    238,705.64x = 329,406.90 × 136,727.72
  4. Step 4: Simplify right side
    238,705.64x = 45,039,054,389.27
  5. Step 5: Solve for x
    x = 45,039,054,389.27/238,705.64
  6. Step 6: Final answer
    x = 188,680.31

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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.