Home / 156,960.40-235,440.60-139,334.80

Finding the Fourth Proportional to 156,960.40, 235,440.60 and 139,334.80

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Solution

The fourth proportional to 156,960.40, 235,440.60 and 139,334.80 is: 209,002.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,960.40 : 235,440.60 = 139,334.80 : x
  2. Step 2: Convert to fraction form
    156,960.40/235,440.60 = 139,334.80/x
  3. Step 3: Cross multiply
    156,960.40x = 235,440.60 × 139,334.80
  4. Step 4: Simplify right side
    156,960.40x = 32,805,068,912.88
  5. Step 5: Solve for x
    x = 32,805,068,912.88/156,960.40
  6. Step 6: Final answer
    x = 209,002.20

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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.