Home / 151,453.78-209,058.70-103,864.66

Finding the Fourth Proportional to 151,453.78, 209,058.70 and 103,864.66

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Solution

The fourth proportional to 151,453.78, 209,058.70 and 103,864.66 is: 143,369.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,453.78 : 209,058.70 = 103,864.66 : x
  2. Step 2: Convert to fraction form
    151,453.78/209,058.70 = 103,864.66/x
  3. Step 3: Cross multiply
    151,453.78x = 209,058.70 × 103,864.66
  4. Step 4: Simplify right side
    151,453.78x = 21,713,810,795.54
  5. Step 5: Solve for x
    x = 21,713,810,795.54/151,453.78
  6. Step 6: Final answer
    x = 143,369.22

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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.