Home / 129,710.58-194,531.02-49,731.18

Finding the Fourth Proportional to 129,710.58, 194,531.02 and 49,731.18

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Solution

The fourth proportional to 129,710.58, 194,531.02 and 49,731.18 is: 74,583.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,710.58 : 194,531.02 = 49,731.18 : x
  2. Step 2: Convert to fraction form
    129,710.58/194,531.02 = 49,731.18/x
  3. Step 3: Cross multiply
    129,710.58x = 194,531.02 × 49,731.18
  4. Step 4: Simplify right side
    129,710.58x = 9,674,257,171.20
  5. Step 5: Solve for x
    x = 9,674,257,171.20/129,710.58
  6. Step 6: Final answer
    x = 74,583.41

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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.