Home / 129,436.38-194,201.28-45,208.98

Finding the Fourth Proportional to 129,436.38, 194,201.28 and 45,208.98

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Solution

The fourth proportional to 129,436.38, 194,201.28 and 45,208.98 is: 67,829.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,436.38 : 194,201.28 = 45,208.98 : x
  2. Step 2: Convert to fraction form
    129,436.38/194,201.28 = 45,208.98/x
  3. Step 3: Cross multiply
    129,436.38x = 194,201.28 × 45,208.98
  4. Step 4: Simplify right side
    129,436.38x = 8,779,641,783.49
  5. Step 5: Solve for x
    x = 8,779,641,783.49/129,436.38
  6. Step 6: Final answer
    x = 67,829.78

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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.