Home / 238,815.85-329,612.94-136,909.72

Finding the Fourth Proportional to 238,815.85, 329,612.94 and 136,909.72

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Solution

The fourth proportional to 238,815.85, 329,612.94 and 136,909.72 is: 188,962.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,815.85 : 329,612.94 = 136,909.72 : x
  2. Step 2: Convert to fraction form
    238,815.85/329,612.94 = 136,909.72/x
  3. Step 3: Cross multiply
    238,815.85x = 329,612.94 × 136,909.72
  4. Step 4: Simplify right side
    238,815.85x = 45,127,213,675.71
  5. Step 5: Solve for x
    x = 45,127,213,675.71/238,815.85
  6. Step 6: Final answer
    x = 188,962.39

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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.