Home / 151,731.50-209,396.04-84,663.50

Finding the Fourth Proportional to 151,731.50, 209,396.04 and 84,663.50

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Solution

The fourth proportional to 151,731.50, 209,396.04 and 84,663.50 is: 116,839.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,731.50 : 209,396.04 = 84,663.50 : x
  2. Step 2: Convert to fraction form
    151,731.50/209,396.04 = 84,663.50/x
  3. Step 3: Cross multiply
    151,731.50x = 209,396.04 × 84,663.50
  4. Step 4: Simplify right side
    151,731.50x = 17,728,201,632.54
  5. Step 5: Solve for x
    x = 17,728,201,632.54/151,731.50
  6. Step 6: Final answer
    x = 116,839.30

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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.