Home / 126,528.33-174,489.75-81,220.17

Finding the Fourth Proportional to 126,528.33, 174,489.75 and 81,220.17

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Solution

The fourth proportional to 126,528.33, 174,489.75 and 81,220.17 is: 112,007.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,528.33 : 174,489.75 = 81,220.17 : x
  2. Step 2: Convert to fraction form
    126,528.33/174,489.75 = 81,220.17/x
  3. Step 3: Cross multiply
    126,528.33x = 174,489.75 × 81,220.17
  4. Step 4: Simplify right side
    126,528.33x = 14,172,087,158.26
  5. Step 5: Solve for x
    x = 14,172,087,158.26/126,528.33
  6. Step 6: Final answer
    x = 112,007.23

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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.