Home / 136,564.80-188,473.44-76,145.28

Finding the Fourth Proportional to 136,564.80, 188,473.44 and 76,145.28

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Solution

The fourth proportional to 136,564.80, 188,473.44 and 76,145.28 is: 105,088.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,564.80 : 188,473.44 = 76,145.28 : x
  2. Step 2: Convert to fraction form
    136,564.80/188,473.44 = 76,145.28/x
  3. Step 3: Cross multiply
    136,564.80x = 188,473.44 × 76,145.28
  4. Step 4: Simplify right side
    136,564.80x = 14,351,362,861.36
  5. Step 5: Solve for x
    x = 14,351,362,861.36/136,564.80
  6. Step 6: Final answer
    x = 105,088.30

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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.