Home / 156,947.40-235,161.90-133,619.40

Finding the Fourth Proportional to 156,947.40, 235,161.90 and 133,619.40

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Solution

The fourth proportional to 156,947.40, 235,161.90 and 133,619.40 is: 200,208.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,947.40 : 235,161.90 = 133,619.40 : x
  2. Step 2: Convert to fraction form
    156,947.40/235,161.90 = 133,619.40/x
  3. Step 3: Cross multiply
    156,947.40x = 235,161.90 × 133,619.40
  4. Step 4: Simplify right side
    156,947.40x = 31,422,191,980.86
  5. Step 5: Solve for x
    x = 31,422,191,980.86/156,947.40
  6. Step 6: Final answer
    x = 200,208.43

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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.