Home / 235,784.20-325,372.24-128,352

Finding the Fourth Proportional to 235,784.20, 325,372.24 and 128,352

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Solution

The fourth proportional to 235,784.20, 325,372.24 and 128,352 is: 177,120.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,784.20 : 325,372.24 = 128,352 : x
  2. Step 2: Convert to fraction form
    235,784.20/325,372.24 = 128,352/x
  3. Step 3: Cross multiply
    235,784.20x = 325,372.24 × 128,352
  4. Step 4: Simplify right side
    235,784.20x = 41,762,177,748.48
  5. Step 5: Solve for x
    x = 41,762,177,748.48/235,784.20
  6. Step 6: Final answer
    x = 177,120.34

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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.