Home / 84,200.33-126,312.86-30,160.91

Finding the Fourth Proportional to 84,200.33, 126,312.86 and 30,160.91

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Solution

The fourth proportional to 84,200.33, 126,312.86 and 30,160.91 is: 45,245.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,200.33 : 126,312.86 = 30,160.91 : x
  2. Step 2: Convert to fraction form
    84,200.33/126,312.86 = 30,160.91/x
  3. Step 3: Cross multiply
    84,200.33x = 126,312.86 × 30,160.91
  4. Step 4: Simplify right side
    84,200.33x = 3,809,711,193.49
  5. Step 5: Solve for x
    x = 3,809,711,193.49/84,200.33
  6. Step 6: Final answer
    x = 45,245.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.