Home / 160,171.12-240,401.76-85,354.48

Finding the Fourth Proportional to 160,171.12, 240,401.76 and 85,354.48

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Solution

The fourth proportional to 160,171.12, 240,401.76 and 85,354.48 is: 128,109.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,171.12 : 240,401.76 = 85,354.48 : x
  2. Step 2: Convert to fraction form
    160,171.12/240,401.76 = 85,354.48/x
  3. Step 3: Cross multiply
    160,171.12x = 240,401.76 × 85,354.48
  4. Step 4: Simplify right side
    160,171.12x = 20,519,367,215.88
  5. Step 5: Solve for x
    x = 20,519,367,215.88/160,171.12
  6. Step 6: Final answer
    x = 128,109.03

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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.