Home / 440,054.28-659,977.85-120,130.10

Finding the Fourth Proportional to 440,054.28, 659,977.85 and 120,130.10

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Solution

The fourth proportional to 440,054.28, 659,977.85 and 120,130.10 is: 180,166.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,054.28 : 659,977.85 = 120,130.10 : x
  2. Step 2: Convert to fraction form
    440,054.28/659,977.85 = 120,130.10/x
  3. Step 3: Cross multiply
    440,054.28x = 659,977.85 × 120,130.10
  4. Step 4: Simplify right side
    440,054.28x = 79,283,201,217.75
  5. Step 5: Solve for x
    x = 79,283,201,217.75/440,054.28
  6. Step 6: Final answer
    x = 180,166.87

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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.