Home / 177,618.80-266,428.20-121,631.60

Finding the Fourth Proportional to 177,618.80, 266,428.20 and 121,631.60

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Solution

The fourth proportional to 177,618.80, 266,428.20 and 121,631.60 is: 182,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,618.80 : 266,428.20 = 121,631.60 : x
  2. Step 2: Convert to fraction form
    177,618.80/266,428.20 = 121,631.60/x
  3. Step 3: Cross multiply
    177,618.80x = 266,428.20 × 121,631.60
  4. Step 4: Simplify right side
    177,618.80x = 32,406,088,251.12
  5. Step 5: Solve for x
    x = 32,406,088,251.12/177,618.80
  6. Step 6: Final answer
    x = 182,447.40

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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.