Home / 154,670.03-231,705.78-86,996.47

Finding the Fourth Proportional to 154,670.03, 231,705.78 and 86,996.47

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Solution

The fourth proportional to 154,670.03, 231,705.78 and 86,996.47 is: 130,326.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,670.03 : 231,705.78 = 86,996.47 : x
  2. Step 2: Convert to fraction form
    154,670.03/231,705.78 = 86,996.47/x
  3. Step 3: Cross multiply
    154,670.03x = 231,705.78 × 86,996.47
  4. Step 4: Simplify right side
    154,670.03x = 20,157,585,228.23
  5. Step 5: Solve for x
    x = 20,157,585,228.23/154,670.03
  6. Step 6: Final answer
    x = 130,326.38

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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.