Home / 147,410.48-203,400.96-86,976.56

Finding the Fourth Proportional to 147,410.48, 203,400.96 and 86,976.56

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Solution

The fourth proportional to 147,410.48, 203,400.96 and 86,976.56 is: 120,012.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,410.48 : 203,400.96 = 86,976.56 : x
  2. Step 2: Convert to fraction form
    147,410.48/203,400.96 = 86,976.56/x
  3. Step 3: Cross multiply
    147,410.48x = 203,400.96 × 86,976.56
  4. Step 4: Simplify right side
    147,410.48x = 17,691,115,801.50
  5. Step 5: Solve for x
    x = 17,691,115,801.50/147,410.48
  6. Step 6: Final answer
    x = 120,012.61

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1.5x scale

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.