Home / 99,407.36-137,129.87-59,092.44

Finding the Fourth Proportional to 99,407.36, 137,129.87 and 59,092.44

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Solution

The fourth proportional to 99,407.36, 137,129.87 and 59,092.44 is: 81,516.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,407.36 : 137,129.87 = 59,092.44 : x
  2. Step 2: Convert to fraction form
    99,407.36/137,129.87 = 59,092.44/x
  3. Step 3: Cross multiply
    99,407.36x = 137,129.87 × 59,092.44
  4. Step 4: Simplify right side
    99,407.36x = 8,103,338,319.72
  5. Step 5: Solve for x
    x = 8,103,338,319.72/99,407.36
  6. Step 6: Final answer
    x = 81,516.49

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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.