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Finding the Fourth Proportional to 163,477.29, 225,593.31 and 90,879.84

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Solution

The fourth proportional to 163,477.29, 225,593.31 and 90,879.84 is: 125,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,477.29 : 225,593.31 = 90,879.84 : x
  2. Step 2: Convert to fraction form
    163,477.29/225,593.31 = 90,879.84/x
  3. Step 3: Cross multiply
    163,477.29x = 225,593.31 × 90,879.84
  4. Step 4: Simplify right side
    163,477.29x = 20,501,883,917.87
  5. Step 5: Solve for x
    x = 20,501,883,917.87/163,477.29
  6. Step 6: Final answer
    x = 125,411.20

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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.