Home / 210,665.44-290,719.34-115,172.14

Finding the Fourth Proportional to 210,665.44, 290,719.34 and 115,172.14

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Solution

The fourth proportional to 210,665.44, 290,719.34 and 115,172.14 is: 158,938.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,665.44 : 290,719.34 = 115,172.14 : x
  2. Step 2: Convert to fraction form
    210,665.44/290,719.34 = 115,172.14/x
  3. Step 3: Cross multiply
    210,665.44x = 290,719.34 × 115,172.14
  4. Step 4: Simplify right side
    210,665.44x = 33,482,768,527.19
  5. Step 5: Solve for x
    x = 33,482,768,527.19/210,665.44
  6. Step 6: Final answer
    x = 158,938.12

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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.