Home / 109,307.30-163,960.98-84,383.73

Finding the Fourth Proportional to 109,307.30, 163,960.98 and 84,383.73

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Solution

The fourth proportional to 109,307.30, 163,960.98 and 84,383.73 is: 126,575.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,307.30 : 163,960.98 = 84,383.73 : x
  2. Step 2: Convert to fraction form
    109,307.30/163,960.98 = 84,383.73/x
  3. Step 3: Cross multiply
    109,307.30x = 163,960.98 × 84,383.73
  4. Step 4: Simplify right side
    109,307.30x = 13,835,639,066.86
  5. Step 5: Solve for x
    x = 13,835,639,066.86/109,307.30
  6. Step 6: Final answer
    x = 126,575.62

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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.