Home / 161,811.20-242,716.80-108,934.40

Finding the Fourth Proportional to 161,811.20, 242,716.80 and 108,934.40

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Solution

The fourth proportional to 161,811.20, 242,716.80 and 108,934.40 is: 163,401.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,811.20 : 242,716.80 = 108,934.40 : x
  2. Step 2: Convert to fraction form
    161,811.20/242,716.80 = 108,934.40/x
  3. Step 3: Cross multiply
    161,811.20x = 242,716.80 × 108,934.40
  4. Step 4: Simplify right side
    161,811.20x = 26,440,208,977.92
  5. Step 5: Solve for x
    x = 26,440,208,977.92/161,811.20
  6. Step 6: Final answer
    x = 163,401.60

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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.