Home / 297,139.04-445,709.37-72,500.12

Finding the Fourth Proportional to 297,139.04, 445,709.37 and 72,500.12

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Solution

The fourth proportional to 297,139.04, 445,709.37 and 72,500.12 is: 108,750.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,139.04 : 445,709.37 = 72,500.12 : x
  2. Step 2: Convert to fraction form
    297,139.04/445,709.37 = 72,500.12/x
  3. Step 3: Cross multiply
    297,139.04x = 445,709.37 × 72,500.12
  4. Step 4: Simplify right side
    297,139.04x = 32,313,982,810.12
  5. Step 5: Solve for x
    x = 32,313,982,810.12/297,139.04
  6. Step 6: Final answer
    x = 108,750.38

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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.