Home / 160,344.12-240,445.11-85,450.32

Finding the Fourth Proportional to 160,344.12, 240,445.11 and 85,450.32

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Solution

The fourth proportional to 160,344.12, 240,445.11 and 85,450.32 is: 128,137.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,344.12 : 240,445.11 = 85,450.32 : x
  2. Step 2: Convert to fraction form
    160,344.12/240,445.11 = 85,450.32/x
  3. Step 3: Cross multiply
    160,344.12x = 240,445.11 × 85,450.32
  4. Step 4: Simplify right side
    160,344.12x = 20,546,111,591.94
  5. Step 5: Solve for x
    x = 20,546,111,591.94/160,344.12
  6. Step 6: Final answer
    x = 128,137.61

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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.