Home / 105,091.23-144,988.01-80,899.59

Finding the Fourth Proportional to 105,091.23, 144,988.01 and 80,899.59

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Solution

The fourth proportional to 105,091.23, 144,988.01 and 80,899.59 is: 111,612.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,091.23 : 144,988.01 = 80,899.59 : x
  2. Step 2: Convert to fraction form
    105,091.23/144,988.01 = 80,899.59/x
  3. Step 3: Cross multiply
    105,091.23x = 144,988.01 × 80,899.59
  4. Step 4: Simplify right side
    105,091.23x = 11,729,471,006.50
  5. Step 5: Solve for x
    x = 11,729,471,006.50/105,091.23
  6. Step 6: Final answer
    x = 111,612.27

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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.