Home / 189,007.56-283,511.88-129,663.36

Finding the Fourth Proportional to 189,007.56, 283,511.88 and 129,663.36

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Solution

The fourth proportional to 189,007.56, 283,511.88 and 129,663.36 is: 194,495.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,007.56 : 283,511.88 = 129,663.36 : x
  2. Step 2: Convert to fraction form
    189,007.56/283,511.88 = 129,663.36/x
  3. Step 3: Cross multiply
    189,007.56x = 283,511.88 × 129,663.36
  4. Step 4: Simplify right side
    189,007.56x = 36,761,102,960.72
  5. Step 5: Solve for x
    x = 36,761,102,960.72/189,007.56
  6. Step 6: Final answer
    x = 194,495.41

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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.