Home / 156,964.60-235,446.90-139,857.40

Finding the Fourth Proportional to 156,964.60, 235,446.90 and 139,857.40

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Solution

The fourth proportional to 156,964.60, 235,446.90 and 139,857.40 is: 209,786.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,964.60 : 235,446.90 = 139,857.40 : x
  2. Step 2: Convert to fraction form
    156,964.60/235,446.90 = 139,857.40/x
  3. Step 3: Cross multiply
    156,964.60x = 235,446.90 × 139,857.40
  4. Step 4: Simplify right side
    156,964.60x = 32,928,991,272.06
  5. Step 5: Solve for x
    x = 32,928,991,272.06/156,964.60
  6. Step 6: Final answer
    x = 209,786.10

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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.