Home / 160,782.36-221,878.40-89,162.56

Finding the Fourth Proportional to 160,782.36, 221,878.40 and 89,162.56

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Solution

The fourth proportional to 160,782.36, 221,878.40 and 89,162.56 is: 123,043.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,782.36 : 221,878.40 = 89,162.56 : x
  2. Step 2: Convert to fraction form
    160,782.36/221,878.40 = 89,162.56/x
  3. Step 3: Cross multiply
    160,782.36x = 221,878.40 × 89,162.56
  4. Step 4: Simplify right side
    160,782.36x = 19,783,246,152.70
  5. Step 5: Solve for x
    x = 19,783,246,152.70/160,782.36
  6. Step 6: Final answer
    x = 123,043.64

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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.