Home / 156,956.80-235,089.60-139,446.40

Finding the Fourth Proportional to 156,956.80, 235,089.60 and 139,446.40

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Solution

The fourth proportional to 156,956.80, 235,089.60 and 139,446.40 is: 208,862.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,956.80 : 235,089.60 = 139,446.40 : x
  2. Step 2: Convert to fraction form
    156,956.80/235,089.60 = 139,446.40/x
  3. Step 3: Cross multiply
    156,956.80x = 235,089.60 × 139,446.40
  4. Step 4: Simplify right side
    156,956.80x = 32,782,398,397.44
  5. Step 5: Solve for x
    x = 32,782,398,397.44/156,956.80
  6. Step 6: Final answer
    x = 208,862.56

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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.