Home / 138,254.24-190,372.24-115,859.36

Finding the Fourth Proportional to 138,254.24, 190,372.24 and 115,859.36

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Solution

The fourth proportional to 138,254.24, 190,372.24 and 115,859.36 is: 159,535.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,254.24 : 190,372.24 = 115,859.36 : x
  2. Step 2: Convert to fraction form
    138,254.24/190,372.24 = 115,859.36/x
  3. Step 3: Cross multiply
    138,254.24x = 190,372.24 × 115,859.36
  4. Step 4: Simplify right side
    138,254.24x = 22,056,405,888.17
  5. Step 5: Solve for x
    x = 22,056,405,888.17/138,254.24
  6. Step 6: Final answer
    x = 159,535.11

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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.