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Finding the Fourth Proportional to 161,700.40, 242,550.60 and 90,841.60

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Solution

The fourth proportional to 161,700.40, 242,550.60 and 90,841.60 is: 136,262.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,700.40 : 242,550.60 = 90,841.60 : x
  2. Step 2: Convert to fraction form
    161,700.40/242,550.60 = 90,841.60/x
  3. Step 3: Cross multiply
    161,700.40x = 242,550.60 × 90,841.60
  4. Step 4: Simplify right side
    161,700.40x = 22,033,684,584.96
  5. Step 5: Solve for x
    x = 22,033,684,584.96/161,700.40
  6. Step 6: Final answer
    x = 136,262.40

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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.