Home / 165,155.20-247,629.08-75,225.76

Finding the Fourth Proportional to 165,155.20, 247,629.08 and 75,225.76

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Solution

The fourth proportional to 165,155.20, 247,629.08 and 75,225.76 is: 112,791.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,155.20 : 247,629.08 = 75,225.76 : x
  2. Step 2: Convert to fraction form
    165,155.20/247,629.08 = 75,225.76/x
  3. Step 3: Cross multiply
    165,155.20x = 247,629.08 × 75,225.76
  4. Step 4: Simplify right side
    165,155.20x = 18,628,085,741.10
  5. Step 5: Solve for x
    x = 18,628,085,741.10/165,155.20
  6. Step 6: Final answer
    x = 112,791.40

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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.