Home / 128,928.52-193,388.73-35,433.46

Finding the Fourth Proportional to 128,928.52, 193,388.73 and 35,433.46

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Solution

The fourth proportional to 128,928.52, 193,388.73 and 35,433.46 is: 53,149.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,928.52 : 193,388.73 = 35,433.46 : x
  2. Step 2: Convert to fraction form
    128,928.52/193,388.73 = 35,433.46/x
  3. Step 3: Cross multiply
    128,928.52x = 193,388.73 × 35,433.46
  4. Step 4: Simplify right side
    128,928.52x = 6,852,431,828.91
  5. Step 5: Solve for x
    x = 6,852,431,828.91/128,928.52
  6. Step 6: Final answer
    x = 53,149.08

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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.