Home / 149,362.90-206,111.18-88,937.98

Finding the Fourth Proportional to 149,362.90, 206,111.18 and 88,937.98

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Solution

The fourth proportional to 149,362.90, 206,111.18 and 88,937.98 is: 122,728.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,362.90 : 206,111.18 = 88,937.98 : x
  2. Step 2: Convert to fraction form
    149,362.90/206,111.18 = 88,937.98/x
  3. Step 3: Cross multiply
    149,362.90x = 206,111.18 × 88,937.98
  4. Step 4: Simplify right side
    149,362.90x = 18,331,112,004.62
  5. Step 5: Solve for x
    x = 18,331,112,004.62/149,362.90
  6. Step 6: Final answer
    x = 122,728.68

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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.