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Finding the Fourth Proportional to 169,088.80, 253,399.92 and 127,490.08

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Solution

The fourth proportional to 169,088.80, 253,399.92 and 127,490.08 is: 191,059.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,088.80 : 253,399.92 = 127,490.08 : x
  2. Step 2: Convert to fraction form
    169,088.80/253,399.92 = 127,490.08/x
  3. Step 3: Cross multiply
    169,088.80x = 253,399.92 × 127,490.08
  4. Step 4: Simplify right side
    169,088.80x = 32,305,976,072.79
  5. Step 5: Solve for x
    x = 32,305,976,072.79/169,088.80
  6. Step 6: Final answer
    x = 191,059.23

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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.