Home / 135,095.22-186,435.15-74,669.70

Finding the Fourth Proportional to 135,095.22, 186,435.15 and 74,669.70

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Solution

The fourth proportional to 135,095.22, 186,435.15 and 74,669.70 is: 103,046.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,095.22 : 186,435.15 = 74,669.70 : x
  2. Step 2: Convert to fraction form
    135,095.22/186,435.15 = 74,669.70/x
  3. Step 3: Cross multiply
    135,095.22x = 186,435.15 × 74,669.70
  4. Step 4: Simplify right side
    135,095.22x = 13,921,056,719.96
  5. Step 5: Solve for x
    x = 13,921,056,719.96/135,095.22
  6. Step 6: Final answer
    x = 103,046.26

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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.