Home / 123,329.26-170,357.73-99,221.00

Finding the Fourth Proportional to 123,329.26, 170,357.73 and 99,221.00

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Solution

The fourth proportional to 123,329.26, 170,357.73 and 99,221.00 is: 137,056.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,329.26 : 170,357.73 = 99,221.00 : x
  2. Step 2: Convert to fraction form
    123,329.26/170,357.73 = 99,221.00/x
  3. Step 3: Cross multiply
    123,329.26x = 170,357.73 × 99,221.00
  4. Step 4: Simplify right side
    123,329.26x = 16,903,064,620.84
  5. Step 5: Solve for x
    x = 16,903,064,620.84/123,329.26
  6. Step 6: Final answer
    x = 137,056.40

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1.5x scale

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.