Home / 136,288.19-188,055.27-75,857.29

Finding the Fourth Proportional to 136,288.19, 188,055.27 and 75,857.29

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Solution

The fourth proportional to 136,288.19, 188,055.27 and 75,857.29 is: 104,670.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,288.19 : 188,055.27 = 75,857.29 : x
  2. Step 2: Convert to fraction form
    136,288.19/188,055.27 = 75,857.29/x
  3. Step 3: Cross multiply
    136,288.19x = 188,055.27 × 75,857.29
  4. Step 4: Simplify right side
    136,288.19x = 14,265,362,682.28
  5. Step 5: Solve for x
    x = 14,265,362,682.28/136,288.19
  6. Step 6: Final answer
    x = 104,670.57

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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.