Home / 151,731.84-209,399.04-84,668.16

Finding the Fourth Proportional to 151,731.84, 209,399.04 and 84,668.16

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Solution

The fourth proportional to 151,731.84, 209,399.04 and 84,668.16 is: 116,847.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,731.84 : 209,399.04 = 84,668.16 : x
  2. Step 2: Convert to fraction form
    151,731.84/209,399.04 = 84,668.16/x
  3. Step 3: Cross multiply
    151,731.84x = 209,399.04 × 84,668.16
  4. Step 4: Simplify right side
    151,731.84x = 17,729,431,422.57
  5. Step 5: Solve for x
    x = 17,729,431,422.57/151,731.84
  6. Step 6: Final answer
    x = 116,847.14

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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.