Home / 156,685.30-235,027.95-139,626.70

Finding the Fourth Proportional to 156,685.30, 235,027.95 and 139,626.70

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Solution

The fourth proportional to 156,685.30, 235,027.95 and 139,626.70 is: 209,440.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,685.30 : 235,027.95 = 139,626.70 : x
  2. Step 2: Convert to fraction form
    156,685.30/235,027.95 = 139,626.70/x
  3. Step 3: Cross multiply
    156,685.30x = 235,027.95 × 139,626.70
  4. Step 4: Simplify right side
    156,685.30x = 32,816,177,066.27
  5. Step 5: Solve for x
    x = 32,816,177,066.27/156,685.30
  6. Step 6: Final answer
    x = 209,440.05

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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.