Home / 197,139.90-295,709.85-72,464.70

Finding the Fourth Proportional to 197,139.90, 295,709.85 and 72,464.70

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Solution

The fourth proportional to 197,139.90, 295,709.85 and 72,464.70 is: 108,697.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,139.90 : 295,709.85 = 72,464.70 : x
  2. Step 2: Convert to fraction form
    197,139.90/295,709.85 = 72,464.70/x
  3. Step 3: Cross multiply
    197,139.90x = 295,709.85 × 72,464.70
  4. Step 4: Simplify right side
    197,139.90x = 21,428,525,567.30
  5. Step 5: Solve for x
    x = 21,428,525,567.30/197,139.90
  6. Step 6: Final answer
    x = 108,697.05

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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.