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Finding the Fourth Proportional to 235,536.16, 325,035.12 and 128,104

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Solution

The fourth proportional to 235,536.16, 325,035.12 and 128,104 is: 176,780.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,536.16 : 325,035.12 = 128,104 : x
  2. Step 2: Convert to fraction form
    235,536.16/325,035.12 = 128,104/x
  3. Step 3: Cross multiply
    235,536.16x = 325,035.12 × 128,104
  4. Step 4: Simplify right side
    235,536.16x = 41,638,299,012.48
  5. Step 5: Solve for x
    x = 41,638,299,012.48/235,536.16
  6. Step 6: Final answer
    x = 176,780.92

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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.