Home / 113,135.22-156,129.39-62,153.01

Finding the Fourth Proportional to 113,135.22, 156,129.39 and 62,153.01

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Solution

The fourth proportional to 113,135.22, 156,129.39 and 62,153.01 is: 85,772.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,135.22 : 156,129.39 = 62,153.01 : x
  2. Step 2: Convert to fraction form
    113,135.22/156,129.39 = 62,153.01/x
  3. Step 3: Cross multiply
    113,135.22x = 156,129.39 × 62,153.01
  4. Step 4: Simplify right side
    113,135.22x = 9,703,911,537.96
  5. Step 5: Solve for x
    x = 9,703,911,537.96/113,135.22
  6. Step 6: Final answer
    x = 85,772.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.