Home / 96,729.80-145,418.70-83,899.40

Finding the Fourth Proportional to 96,729.80, 145,418.70 and 83,899.40

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Solution

The fourth proportional to 96,729.80, 145,418.70 and 83,899.40 is: 126,130.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,729.80 : 145,418.70 = 83,899.40 : x
  2. Step 2: Convert to fraction form
    96,729.80/145,418.70 = 83,899.40/x
  3. Step 3: Cross multiply
    96,729.80x = 145,418.70 × 83,899.40
  4. Step 4: Simplify right side
    96,729.80x = 12,200,541,678.78
  5. Step 5: Solve for x
    x = 12,200,541,678.78/96,729.80
  6. Step 6: Final answer
    x = 126,130.12

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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.