Home / 123,918.76-185,955.90-115,948.36

Finding the Fourth Proportional to 123,918.76, 185,955.90 and 115,948.36

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Solution

The fourth proportional to 123,918.76, 185,955.90 and 115,948.36 is: 173,995.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,918.76 : 185,955.90 = 115,948.36 : x
  2. Step 2: Convert to fraction form
    123,918.76/185,955.90 = 115,948.36/x
  3. Step 3: Cross multiply
    123,918.76x = 185,955.90 × 115,948.36
  4. Step 4: Simplify right side
    123,918.76x = 21,561,281,637.32
  5. Step 5: Solve for x
    x = 21,561,281,637.32/123,918.76
  6. Step 6: Final answer
    x = 173,995.30

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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.