Home / 156,993.80-236,374.61-138,393.36

Finding the Fourth Proportional to 156,993.80, 236,374.61 and 138,393.36

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Solution

The fourth proportional to 156,993.80, 236,374.61 and 138,393.36 is: 208,369.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,993.80 : 236,374.61 = 138,393.36 : x
  2. Step 2: Convert to fraction form
    156,993.80/236,374.61 = 138,393.36/x
  3. Step 3: Cross multiply
    156,993.80x = 236,374.61 × 138,393.36
  4. Step 4: Simplify right side
    156,993.80x = 32,712,675,804.62
  5. Step 5: Solve for x
    x = 32,712,675,804.62/156,993.80
  6. Step 6: Final answer
    x = 208,369.23

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.