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Finding the Fourth Proportional to 96,409.80, 144,960.30 and 81,203.40

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Solution

The fourth proportional to 96,409.80, 144,960.30 and 81,203.40 is: 122,096.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,409.80 : 144,960.30 = 81,203.40 : x
  2. Step 2: Convert to fraction form
    96,409.80/144,960.30 = 81,203.40/x
  3. Step 3: Cross multiply
    96,409.80x = 144,960.30 × 81,203.40
  4. Step 4: Simplify right side
    96,409.80x = 11,771,269,225.02
  5. Step 5: Solve for x
    x = 11,771,269,225.02/96,409.80
  6. Step 6: Final answer
    x = 122,096.19

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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.