Home / 345,726.27-518,665.58-105,841.98

Finding the Fourth Proportional to 345,726.27, 518,665.58 and 105,841.98

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Solution

The fourth proportional to 345,726.27, 518,665.58 and 105,841.98 is: 158,786.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,726.27 : 518,665.58 = 105,841.98 : x
  2. Step 2: Convert to fraction form
    345,726.27/518,665.58 = 105,841.98/x
  3. Step 3: Cross multiply
    345,726.27x = 518,665.58 × 105,841.98
  4. Step 4: Simplify right side
    345,726.27x = 54,896,591,415.84
  5. Step 5: Solve for x
    x = 54,896,591,415.84/345,726.27
  6. Step 6: Final answer
    x = 158,786.29

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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.