Home / 161,821.80-242,732.70-156,378.60

Finding the Fourth Proportional to 161,821.80, 242,732.70 and 156,378.60

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Solution

The fourth proportional to 161,821.80, 242,732.70 and 156,378.60 is: 234,567.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,821.80 : 242,732.70 = 156,378.60 : x
  2. Step 2: Convert to fraction form
    161,821.80/242,732.70 = 156,378.60/x
  3. Step 3: Cross multiply
    161,821.80x = 242,732.70 × 156,378.60
  4. Step 4: Simplify right side
    161,821.80x = 37,958,199,800.22
  5. Step 5: Solve for x
    x = 37,958,199,800.22/161,821.80
  6. Step 6: Final answer
    x = 234,567.90

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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.