Home / 152,137.28-209,933.29-84,143.45

Finding the Fourth Proportional to 152,137.28, 209,933.29 and 84,143.45

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Solution

The fourth proportional to 152,137.28, 209,933.29 and 84,143.45 is: 116,109.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,137.28 : 209,933.29 = 84,143.45 : x
  2. Step 2: Convert to fraction form
    152,137.28/209,933.29 = 84,143.45/x
  3. Step 3: Cross multiply
    152,137.28x = 209,933.29 × 84,143.45
  4. Step 4: Simplify right side
    152,137.28x = 17,664,511,133.21
  5. Step 5: Solve for x
    x = 17,664,511,133.21/152,137.28
  6. Step 6: Final answer
    x = 116,109.03

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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.