Home / 186,034.20-279,116.10-80,928.60

Finding the Fourth Proportional to 186,034.20, 279,116.10 and 80,928.60

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Solution

The fourth proportional to 186,034.20, 279,116.10 and 80,928.60 is: 121,421.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,034.20 : 279,116.10 = 80,928.60 : x
  2. Step 2: Convert to fraction form
    186,034.20/279,116.10 = 80,928.60/x
  3. Step 3: Cross multiply
    186,034.20x = 279,116.10 × 80,928.60
  4. Step 4: Simplify right side
    186,034.20x = 22,588,475,210.46
  5. Step 5: Solve for x
    x = 22,588,475,210.46/186,034.20
  6. Step 6: Final answer
    x = 121,421.09

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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.