Home / 185,688.56-278,260.68-115,354.64

Finding the Fourth Proportional to 185,688.56, 278,260.68 and 115,354.64

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Solution

The fourth proportional to 185,688.56, 278,260.68 and 115,354.64 is: 172,862.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,688.56 : 278,260.68 = 115,354.64 : x
  2. Step 2: Convert to fraction form
    185,688.56/278,260.68 = 115,354.64/x
  3. Step 3: Cross multiply
    185,688.56x = 278,260.68 × 115,354.64
  4. Step 4: Simplify right side
    185,688.56x = 32,098,660,567.56
  5. Step 5: Solve for x
    x = 32,098,660,567.56/185,688.56
  6. Step 6: Final answer
    x = 172,862.89

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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.