Home / 152,439.30-228,576.45-121,051.29

Finding the Fourth Proportional to 152,439.30, 228,576.45 and 121,051.29

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Solution

The fourth proportional to 152,439.30, 228,576.45 and 121,051.29 is: 181,511.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,439.30 : 228,576.45 = 121,051.29 : x
  2. Step 2: Convert to fraction form
    152,439.30/228,576.45 = 121,051.29/x
  3. Step 3: Cross multiply
    152,439.30x = 228,576.45 × 121,051.29
  4. Step 4: Simplify right side
    152,439.30x = 27,669,474,136.12
  5. Step 5: Solve for x
    x = 27,669,474,136.12/152,439.30
  6. Step 6: Final answer
    x = 181,511.42

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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.