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Finding the Fourth Proportional to 96,341.40, 144,512.10 and 86,664.60

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Solution

The fourth proportional to 96,341.40, 144,512.10 and 86,664.60 is: 129,996.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,341.40 : 144,512.10 = 86,664.60 : x
  2. Step 2: Convert to fraction form
    96,341.40/144,512.10 = 86,664.60/x
  3. Step 3: Cross multiply
    96,341.40x = 144,512.10 × 86,664.60
  4. Step 4: Simplify right side
    96,341.40x = 12,524,083,341.66
  5. Step 5: Solve for x
    x = 12,524,083,341.66/96,341.40
  6. Step 6: Final answer
    x = 129,996.90

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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.