Home / 156,721.57-235,175.73-56,889.55

Finding the Fourth Proportional to 156,721.57, 235,175.73 and 56,889.55

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Solution

The fourth proportional to 156,721.57, 235,175.73 and 56,889.55 is: 85,368.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,721.57 : 235,175.73 = 56,889.55 : x
  2. Step 2: Convert to fraction form
    156,721.57/235,175.73 = 56,889.55/x
  3. Step 3: Cross multiply
    156,721.57x = 235,175.73 × 56,889.55
  4. Step 4: Simplify right side
    156,721.57x = 13,379,041,450.62
  5. Step 5: Solve for x
    x = 13,379,041,450.62/156,721.57
  6. Step 6: Final answer
    x = 85,368.22

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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.