Home / 128,904.60-193,310.67-44,642.13

Finding the Fourth Proportional to 128,904.60, 193,310.67 and 44,642.13

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Solution

The fourth proportional to 128,904.60, 193,310.67 and 44,642.13 is: 66,947.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,904.60 : 193,310.67 = 44,642.13 : x
  2. Step 2: Convert to fraction form
    128,904.60/193,310.67 = 44,642.13/x
  3. Step 3: Cross multiply
    128,904.60x = 193,310.67 × 44,642.13
  4. Step 4: Simplify right side
    128,904.60x = 8,629,800,060.53
  5. Step 5: Solve for x
    x = 8,629,800,060.53/128,904.60
  6. Step 6: Final answer
    x = 66,947.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.