Home / 156,336.60-234,504.90-139,715.40

Finding the Fourth Proportional to 156,336.60, 234,504.90 and 139,715.40

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Solution

The fourth proportional to 156,336.60, 234,504.90 and 139,715.40 is: 209,573.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,336.60 : 234,504.90 = 139,715.40 : x
  2. Step 2: Convert to fraction form
    156,336.60/234,504.90 = 139,715.40/x
  3. Step 3: Cross multiply
    156,336.60x = 234,504.90 × 139,715.40
  4. Step 4: Simplify right side
    156,336.60x = 32,763,945,905.46
  5. Step 5: Solve for x
    x = 32,763,945,905.46/156,336.60
  6. Step 6: Final answer
    x = 209,573.10

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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.