Home / 146,388.58-202,005.03-81,857.50

Finding the Fourth Proportional to 146,388.58, 202,005.03 and 81,857.50

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Solution

The fourth proportional to 146,388.58, 202,005.03 and 81,857.50 is: 112,957.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,388.58 : 202,005.03 = 81,857.50 : x
  2. Step 2: Convert to fraction form
    146,388.58/202,005.03 = 81,857.50/x
  3. Step 3: Cross multiply
    146,388.58x = 202,005.03 × 81,857.50
  4. Step 4: Simplify right side
    146,388.58x = 16,535,626,743.23
  5. Step 5: Solve for x
    x = 16,535,626,743.23/146,388.58
  6. Step 6: Final answer
    x = 112,957.08

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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.