Home / 187,919.36-259,326.78-103,036.28

Finding the Fourth Proportional to 187,919.36, 259,326.78 and 103,036.28

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Solution

The fourth proportional to 187,919.36, 259,326.78 and 103,036.28 is: 142,189.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,919.36 : 259,326.78 = 103,036.28 : x
  2. Step 2: Convert to fraction form
    187,919.36/259,326.78 = 103,036.28/x
  3. Step 3: Cross multiply
    187,919.36x = 259,326.78 × 103,036.28
  4. Step 4: Simplify right side
    187,919.36x = 26,720,066,715.58
  5. Step 5: Solve for x
    x = 26,720,066,715.58/187,919.36
  6. Step 6: Final answer
    x = 142,189.00

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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.