Home / 141,040.35-194,635.04-77,376.78

Finding the Fourth Proportional to 141,040.35, 194,635.04 and 77,376.78

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Solution

The fourth proportional to 141,040.35, 194,635.04 and 77,376.78 is: 106,779.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,040.35 : 194,635.04 = 77,376.78 : x
  2. Step 2: Convert to fraction form
    141,040.35/194,635.04 = 77,376.78/x
  3. Step 3: Cross multiply
    141,040.35x = 194,635.04 × 77,376.78
  4. Step 4: Simplify right side
    141,040.35x = 15,060,232,283.49
  5. Step 5: Solve for x
    x = 15,060,232,283.49/141,040.35
  6. Step 6: Final answer
    x = 106,779.60

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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.