Home / 151,029.90-208,422.06-83,051.28

Finding the Fourth Proportional to 151,029.90, 208,422.06 and 83,051.28

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Solution

The fourth proportional to 151,029.90, 208,422.06 and 83,051.28 is: 114,611.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,029.90 : 208,422.06 = 83,051.28 : x
  2. Step 2: Convert to fraction form
    151,029.90/208,422.06 = 83,051.28/x
  3. Step 3: Cross multiply
    151,029.90x = 208,422.06 × 83,051.28
  4. Step 4: Simplify right side
    151,029.90x = 17,309,718,863.24
  5. Step 5: Solve for x
    x = 17,309,718,863.24/151,029.90
  6. Step 6: Final answer
    x = 114,611.21

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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.