Home / 148,101.09-204,378.89-80,117.91

Finding the Fourth Proportional to 148,101.09, 204,378.89 and 80,117.91

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Solution

The fourth proportional to 148,101.09, 204,378.89 and 80,117.91 is: 110,562.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,101.09 : 204,378.89 = 80,117.91 : x
  2. Step 2: Convert to fraction form
    148,101.09/204,378.89 = 80,117.91/x
  3. Step 3: Cross multiply
    148,101.09x = 204,378.89 × 80,117.91
  4. Step 4: Simplify right side
    148,101.09x = 16,374,409,114.33
  5. Step 5: Solve for x
    x = 16,374,409,114.33/148,101.09
  6. Step 6: Final answer
    x = 110,562.38

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1.5x scale

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.