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Finding the Fourth Proportional to 128,095.53, 192,009.31 and 43,827.37

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Solution

The fourth proportional to 128,095.53, 192,009.31 and 43,827.37 is: 65,695.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,095.53 : 192,009.31 = 43,827.37 : x
  2. Step 2: Convert to fraction form
    128,095.53/192,009.31 = 43,827.37/x
  3. Step 3: Cross multiply
    128,095.53x = 192,009.31 × 43,827.37
  4. Step 4: Simplify right side
    128,095.53x = 8,415,263,072.81
  5. Step 5: Solve for x
    x = 8,415,263,072.81/128,095.53
  6. Step 6: Final answer
    x = 65,695.21

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1.5x scale

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.