Home / 103,776.30-143,214.17-63,489.33

Finding the Fourth Proportional to 103,776.30, 143,214.17 and 63,489.33

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Solution

The fourth proportional to 103,776.30, 143,214.17 and 63,489.33 is: 87,617.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,776.30 : 143,214.17 = 63,489.33 : x
  2. Step 2: Convert to fraction form
    103,776.30/143,214.17 = 63,489.33/x
  3. Step 3: Cross multiply
    103,776.30x = 143,214.17 × 63,489.33
  4. Step 4: Simplify right side
    103,776.30x = 9,092,571,382.36
  5. Step 5: Solve for x
    x = 9,092,571,382.36/103,776.30
  6. Step 6: Final answer
    x = 87,617.03

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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.