Home / 210,837.15-290,957.94-115,345.44

Finding the Fourth Proportional to 210,837.15, 290,957.94 and 115,345.44

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Solution

The fourth proportional to 210,837.15, 290,957.94 and 115,345.44 is: 159,178.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,837.15 : 290,957.94 = 115,345.44 : x
  2. Step 2: Convert to fraction form
    210,837.15/290,957.94 = 115,345.44/x
  3. Step 3: Cross multiply
    210,837.15x = 290,957.94 × 115,345.44
  4. Step 4: Simplify right side
    210,837.15x = 33,560,671,610.79
  5. Step 5: Solve for x
    x = 33,560,671,610.79/210,837.15
  6. Step 6: Final answer
    x = 159,178.17

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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.