Home / 149,126.15-205,870.32-115,058.09

Finding the Fourth Proportional to 149,126.15, 205,870.32 and 115,058.09

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Solution

The fourth proportional to 149,126.15, 205,870.32 and 115,058.09 is: 158,838.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,126.15 : 205,870.32 = 115,058.09 : x
  2. Step 2: Convert to fraction form
    149,126.15/205,870.32 = 115,058.09/x
  3. Step 3: Cross multiply
    149,126.15x = 205,870.32 × 115,058.09
  4. Step 4: Simplify right side
    149,126.15x = 23,687,044,777.54
  5. Step 5: Solve for x
    x = 23,687,044,777.54/149,126.15
  6. Step 6: Final answer
    x = 158,838.98

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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.