Home / 160,170.12-240,400.26-85,353.48

Finding the Fourth Proportional to 160,170.12, 240,400.26 and 85,353.48

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Solution

The fourth proportional to 160,170.12, 240,400.26 and 85,353.48 is: 128,107.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,170.12 : 240,400.26 = 85,353.48 : x
  2. Step 2: Convert to fraction form
    160,170.12/240,400.26 = 85,353.48/x
  3. Step 3: Cross multiply
    160,170.12x = 240,400.26 × 85,353.48
  4. Step 4: Simplify right side
    160,170.12x = 20,518,998,783.90
  5. Step 5: Solve for x
    x = 20,518,998,783.90/160,170.12
  6. Step 6: Final answer
    x = 128,107.53

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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.