Home / 163,815.50-245,782.38-57,215.15

Finding the Fourth Proportional to 163,815.50, 245,782.38 and 57,215.15

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Solution

The fourth proportional to 163,815.50, 245,782.38 and 57,215.15 is: 85,843.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,815.50 : 245,782.38 = 57,215.15 : x
  2. Step 2: Convert to fraction form
    163,815.50/245,782.38 = 57,215.15/x
  3. Step 3: Cross multiply
    163,815.50x = 245,782.38 × 57,215.15
  4. Step 4: Simplify right side
    163,815.50x = 14,062,475,739.06
  5. Step 5: Solve for x
    x = 14,062,475,739.06/163,815.50
  6. Step 6: Final answer
    x = 85,843.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.