Home / 166,440.14-229,687.40-90,988.64

Finding the Fourth Proportional to 166,440.14, 229,687.40 and 90,988.64

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Solution

The fourth proportional to 166,440.14, 229,687.40 and 90,988.64 is: 125,564.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,440.14 : 229,687.40 = 90,988.64 : x
  2. Step 2: Convert to fraction form
    166,440.14/229,687.40 = 90,988.64/x
  3. Step 3: Cross multiply
    166,440.14x = 229,687.40 × 90,988.64
  4. Step 4: Simplify right side
    166,440.14x = 20,898,943,696.19
  5. Step 5: Solve for x
    x = 20,898,943,696.19/166,440.14
  6. Step 6: Final answer
    x = 125,564.32

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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.