Home / 148,971.75-205,581.02-81,903.75

Finding the Fourth Proportional to 148,971.75, 205,581.02 and 81,903.75

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Solution

The fourth proportional to 148,971.75, 205,581.02 and 81,903.75 is: 113,027.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,971.75 : 205,581.02 = 81,903.75 : x
  2. Step 2: Convert to fraction form
    148,971.75/205,581.02 = 81,903.75/x
  3. Step 3: Cross multiply
    148,971.75x = 205,581.02 × 81,903.75
  4. Step 4: Simplify right side
    148,971.75x = 16,837,856,466.83
  5. Step 5: Solve for x
    x = 16,837,856,466.83/148,971.75
  6. Step 6: Final answer
    x = 113,027.18

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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.