Home / 156,933.90-235,141.65-133,605.90

Finding the Fourth Proportional to 156,933.90, 235,141.65 and 133,605.90

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Solution

The fourth proportional to 156,933.90, 235,141.65 and 133,605.90 is: 200,188.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,933.90 : 235,141.65 = 133,605.90 : x
  2. Step 2: Convert to fraction form
    156,933.90/235,141.65 = 133,605.90/x
  3. Step 3: Cross multiply
    156,933.90x = 235,141.65 × 133,605.90
  4. Step 4: Simplify right side
    156,933.90x = 31,416,311,775.74
  5. Step 5: Solve for x
    x = 31,416,311,775.74/156,933.90
  6. Step 6: Final answer
    x = 200,188.18

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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.