Home / 151,451.78-209,055.94-103,862.66

Finding the Fourth Proportional to 151,451.78, 209,055.94 and 103,862.66

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Solution

The fourth proportional to 151,451.78, 209,055.94 and 103,862.66 is: 143,366.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,451.78 : 209,055.94 = 103,862.66 : x
  2. Step 2: Convert to fraction form
    151,451.78/209,055.94 = 103,862.66/x
  3. Step 3: Cross multiply
    151,451.78x = 209,055.94 × 103,862.66
  4. Step 4: Simplify right side
    151,451.78x = 21,713,104,712.26
  5. Step 5: Solve for x
    x = 21,713,104,712.26/151,451.78
  6. Step 6: Final answer
    x = 143,366.46

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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.