Home / 156,939.90-235,150.65-133,611.90

Finding the Fourth Proportional to 156,939.90, 235,150.65 and 133,611.90

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Solution

The fourth proportional to 156,939.90, 235,150.65 and 133,611.90 is: 200,197.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,939.90 : 235,150.65 = 133,611.90 : x
  2. Step 2: Convert to fraction form
    156,939.90/235,150.65 = 133,611.90/x
  3. Step 3: Cross multiply
    156,939.90x = 235,150.65 × 133,611.90
  4. Step 4: Simplify right side
    156,939.90x = 31,418,925,132.74
  5. Step 5: Solve for x
    x = 31,418,925,132.74/156,939.90
  6. Step 6: Final answer
    x = 200,197.18

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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.