Home / 147,945.20-221,788.20-88,804.40

Finding the Fourth Proportional to 147,945.20, 221,788.20 and 88,804.40

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Solution

The fourth proportional to 147,945.20, 221,788.20 and 88,804.40 is: 133,128.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,945.20 : 221,788.20 = 88,804.40 : x
  2. Step 2: Convert to fraction form
    147,945.20/221,788.20 = 88,804.40/x
  3. Step 3: Cross multiply
    147,945.20x = 221,788.20 × 88,804.40
  4. Step 4: Simplify right side
    147,945.20x = 19,695,768,028.08
  5. Step 5: Solve for x
    x = 19,695,768,028.08/147,945.20
  6. Step 6: Final answer
    x = 133,128.81

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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.