Home / 129,840.40-194,784.64-41,116.24

Finding the Fourth Proportional to 129,840.40, 194,784.64 and 41,116.24

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Solution

The fourth proportional to 129,840.40, 194,784.64 and 41,116.24 is: 61,681.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,840.40 : 194,784.64 = 41,116.24 : x
  2. Step 2: Convert to fraction form
    129,840.40/194,784.64 = 41,116.24/x
  3. Step 3: Cross multiply
    129,840.40x = 194,784.64 × 41,116.24
  4. Step 4: Simplify right side
    129,840.40x = 8,008,812,006.55
  5. Step 5: Solve for x
    x = 8,008,812,006.55/129,840.40
  6. Step 6: Final answer
    x = 61,681.97

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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.