Home / 186,231.20-279,418.48-86,442.40

Finding the Fourth Proportional to 186,231.20, 279,418.48 and 86,442.40

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Solution

The fourth proportional to 186,231.20, 279,418.48 and 86,442.40 is: 129,696.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,231.20 : 279,418.48 = 86,442.40 : x
  2. Step 2: Convert to fraction form
    186,231.20/279,418.48 = 86,442.40/x
  3. Step 3: Cross multiply
    186,231.20x = 279,418.48 × 86,442.40
  4. Step 4: Simplify right side
    186,231.20x = 24,153,604,015.55
  5. Step 5: Solve for x
    x = 24,153,604,015.55/186,231.20
  6. Step 6: Final answer
    x = 129,696.87

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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.