Home / 149,001.03-205,623.98-81,018.46

Finding the Fourth Proportional to 149,001.03, 205,623.98 and 81,018.46

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Solution

The fourth proportional to 149,001.03, 205,623.98 and 81,018.46 is: 111,806.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,001.03 : 205,623.98 = 81,018.46 : x
  2. Step 2: Convert to fraction form
    149,001.03/205,623.98 = 81,018.46/x
  3. Step 3: Cross multiply
    149,001.03x = 205,623.98 × 81,018.46
  4. Step 4: Simplify right side
    149,001.03x = 16,659,337,887.16
  5. Step 5: Solve for x
    x = 16,659,337,887.16/149,001.03
  6. Step 6: Final answer
    x = 111,806.86

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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.