Home / 158,735.68-219,057.88-87,122.36

Finding the Fourth Proportional to 158,735.68, 219,057.88 and 87,122.36

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Solution

The fourth proportional to 158,735.68, 219,057.88 and 87,122.36 is: 120,230.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,735.68 : 219,057.88 = 87,122.36 : x
  2. Step 2: Convert to fraction form
    158,735.68/219,057.88 = 87,122.36/x
  3. Step 3: Cross multiply
    158,735.68x = 219,057.88 × 87,122.36
  4. Step 4: Simplify right side
    158,735.68x = 19,084,839,482.20
  5. Step 5: Solve for x
    x = 19,084,839,482.20/158,735.68
  6. Step 6: Final answer
    x = 120,230.31

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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.