Home / 209,383.40-313,969.98-96,966.92

Finding the Fourth Proportional to 209,383.40, 313,969.98 and 96,966.92

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Solution

The fourth proportional to 209,383.40, 313,969.98 and 96,966.92 is: 145,401.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,383.40 : 313,969.98 = 96,966.92 : x
  2. Step 2: Convert to fraction form
    209,383.40/313,969.98 = 96,966.92/x
  3. Step 3: Cross multiply
    209,383.40x = 313,969.98 × 96,966.92
  4. Step 4: Simplify right side
    209,383.40x = 30,444,701,933.06
  5. Step 5: Solve for x
    x = 30,444,701,933.06/209,383.40
  6. Step 6: Final answer
    x = 145,401.70

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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.