Home / 210,719.03-316,078.87-86,060.03

Finding the Fourth Proportional to 210,719.03, 316,078.87 and 86,060.03

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Solution

The fourth proportional to 210,719.03, 316,078.87 and 86,060.03 is: 129,090.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,719.03 : 316,078.87 = 86,060.03 : x
  2. Step 2: Convert to fraction form
    210,719.03/316,078.87 = 86,060.03/x
  3. Step 3: Cross multiply
    210,719.03x = 316,078.87 × 86,060.03
  4. Step 4: Simplify right side
    210,719.03x = 27,201,757,034.57
  5. Step 5: Solve for x
    x = 27,201,757,034.57/210,719.03
  6. Step 6: Final answer
    x = 129,090.18

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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.