Home / 123,985.36-185,995.56-39,725.82

Finding the Fourth Proportional to 123,985.36, 185,995.56 and 39,725.82

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Solution

The fourth proportional to 123,985.36, 185,995.56 and 39,725.82 is: 59,594.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,985.36 : 185,995.56 = 39,725.82 : x
  2. Step 2: Convert to fraction form
    123,985.36/185,995.56 = 39,725.82/x
  3. Step 3: Cross multiply
    123,985.36x = 185,995.56 × 39,725.82
  4. Step 4: Simplify right side
    123,985.36x = 7,388,826,137.36
  5. Step 5: Solve for x
    x = 7,388,826,137.36/123,985.36
  6. Step 6: Final answer
    x = 59,594.34

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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.