Home / 156,949.90-235,165.65-133,621.90

Finding the Fourth Proportional to 156,949.90, 235,165.65 and 133,621.90

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Solution

The fourth proportional to 156,949.90, 235,165.65 and 133,621.90 is: 200,212.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,949.90 : 235,165.65 = 133,621.90 : x
  2. Step 2: Convert to fraction form
    156,949.90/235,165.65 = 133,621.90/x
  3. Step 3: Cross multiply
    156,949.90x = 235,165.65 × 133,621.90
  4. Step 4: Simplify right side
    156,949.90x = 31,423,280,967.74
  5. Step 5: Solve for x
    x = 31,423,280,967.74/156,949.90
  6. Step 6: Final answer
    x = 200,212.18

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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.