Home / 142,809.21-197,166.33-91,910.39

Finding the Fourth Proportional to 142,809.21, 197,166.33 and 91,910.39

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Solution

The fourth proportional to 142,809.21, 197,166.33 and 91,910.39 is: 126,894.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,809.21 : 197,166.33 = 91,910.39 : x
  2. Step 2: Convert to fraction form
    142,809.21/197,166.33 = 91,910.39/x
  3. Step 3: Cross multiply
    142,809.21x = 197,166.33 × 91,910.39
  4. Step 4: Simplify right side
    142,809.21x = 18,121,633,299.34
  5. Step 5: Solve for x
    x = 18,121,633,299.34/142,809.21
  6. Step 6: Final answer
    x = 126,894.01

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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.