Home / 185,477.10-278,288.55-73,138.20

Finding the Fourth Proportional to 185,477.10, 278,288.55 and 73,138.20

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Solution

The fourth proportional to 185,477.10, 278,288.55 and 73,138.20 is: 109,736.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,477.10 : 278,288.55 = 73,138.20 : x
  2. Step 2: Convert to fraction form
    185,477.10/278,288.55 = 73,138.20/x
  3. Step 3: Cross multiply
    185,477.10x = 278,288.55 × 73,138.20
  4. Step 4: Simplify right side
    185,477.10x = 20,353,523,627.61
  5. Step 5: Solve for x
    x = 20,353,523,627.61/185,477.10
  6. Step 6: Final answer
    x = 109,736.05

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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.