Home / 129,648.45-194,427.69-45,406.74

Finding the Fourth Proportional to 129,648.45, 194,427.69 and 45,406.74

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Solution

The fourth proportional to 129,648.45, 194,427.69 and 45,406.74 is: 68,094.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,648.45 : 194,427.69 = 45,406.74 : x
  2. Step 2: Convert to fraction form
    129,648.45/194,427.69 = 45,406.74/x
  3. Step 3: Cross multiply
    129,648.45x = 194,427.69 × 45,406.74
  4. Step 4: Simplify right side
    129,648.45x = 8,828,328,382.87
  5. Step 5: Solve for x
    x = 8,828,328,382.87/129,648.45
  6. Step 6: Final answer
    x = 68,094.36

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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.