Home / 129,461.78-194,268.15-54,577.34

Finding the Fourth Proportional to 129,461.78, 194,268.15 and 54,577.34

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Solution

The fourth proportional to 129,461.78, 194,268.15 and 54,577.34 is: 81,897.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,461.78 : 194,268.15 = 54,577.34 : x
  2. Step 2: Convert to fraction form
    129,461.78/194,268.15 = 54,577.34/x
  3. Step 3: Cross multiply
    129,461.78x = 194,268.15 × 54,577.34
  4. Step 4: Simplify right side
    129,461.78x = 10,602,638,873.72
  5. Step 5: Solve for x
    x = 10,602,638,873.72/129,461.78
  6. Step 6: Final answer
    x = 81,897.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.