Home / 218,581.23-301,642.73-126,718.43

Finding the Fourth Proportional to 218,581.23, 301,642.73 and 126,718.43

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Solution

The fourth proportional to 218,581.23, 301,642.73 and 126,718.43 is: 174,871.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,581.23 : 301,642.73 = 126,718.43 : x
  2. Step 2: Convert to fraction form
    218,581.23/301,642.73 = 126,718.43/x
  3. Step 3: Cross multiply
    218,581.23x = 301,642.73 × 126,718.43
  4. Step 4: Simplify right side
    218,581.23x = 38,223,692,212.69
  5. Step 5: Solve for x
    x = 38,223,692,212.69/218,581.23
  6. Step 6: Final answer
    x = 174,871.79

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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.