Home / 148,719.76-205,243.56-84,189.04

Finding the Fourth Proportional to 148,719.76, 205,243.56 and 84,189.04

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Solution

The fourth proportional to 148,719.76, 205,243.56 and 84,189.04 is: 116,186.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,719.76 : 205,243.56 = 84,189.04 : x
  2. Step 2: Convert to fraction form
    148,719.76/205,243.56 = 84,189.04/x
  3. Step 3: Cross multiply
    148,719.76x = 205,243.56 × 84,189.04
  4. Step 4: Simplify right side
    148,719.76x = 17,279,258,282.58
  5. Step 5: Solve for x
    x = 17,279,258,282.58/148,719.76
  6. Step 6: Final answer
    x = 116,186.70

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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.