Home / 220,513.11-304,308.09-125,019.80

Finding the Fourth Proportional to 220,513.11, 304,308.09 and 125,019.80

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Solution

The fourth proportional to 220,513.11, 304,308.09 and 125,019.80 is: 172,527.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,513.11 : 304,308.09 = 125,019.80 : x
  2. Step 2: Convert to fraction form
    220,513.11/304,308.09 = 125,019.80/x
  3. Step 3: Cross multiply
    220,513.11x = 304,308.09 × 125,019.80
  4. Step 4: Simplify right side
    220,513.11x = 38,044,536,550.18
  5. Step 5: Solve for x
    x = 38,044,536,550.18/220,513.11
  6. Step 6: Final answer
    x = 172,527.32

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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.