Home / 147,537.80-221,015.10-80,858.60

Finding the Fourth Proportional to 147,537.80, 221,015.10 and 80,858.60

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Solution

The fourth proportional to 147,537.80, 221,015.10 and 80,858.60 is: 121,128.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,537.80 : 221,015.10 = 80,858.60 : x
  2. Step 2: Convert to fraction form
    147,537.80/221,015.10 = 80,858.60/x
  3. Step 3: Cross multiply
    147,537.80x = 221,015.10 × 80,858.60
  4. Step 4: Simplify right side
    147,537.80x = 17,870,971,564.86
  5. Step 5: Solve for x
    x = 17,870,971,564.86/147,537.80
  6. Step 6: Final answer
    x = 121,128.09

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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.