Home / 210,669.26-290,726.42-115,175.72

Finding the Fourth Proportional to 210,669.26, 290,726.42 and 115,175.72

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Solution

The fourth proportional to 210,669.26, 290,726.42 and 115,175.72 is: 158,944.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,669.26 : 290,726.42 = 115,175.72 : x
  2. Step 2: Convert to fraction form
    210,669.26/290,726.42 = 115,175.72/x
  3. Step 3: Cross multiply
    210,669.26x = 290,726.42 × 115,175.72
  4. Step 4: Simplify right side
    210,669.26x = 33,484,624,897.46
  5. Step 5: Solve for x
    x = 33,484,624,897.46/210,669.26
  6. Step 6: Final answer
    x = 158,944.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.