Home / 118,310.15-163,268.39-75,868.85

Finding the Fourth Proportional to 118,310.15, 163,268.39 and 75,868.85

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Solution

The fourth proportional to 118,310.15, 163,268.39 and 75,868.85 is: 104,699.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,310.15 : 163,268.39 = 75,868.85 : x
  2. Step 2: Convert to fraction form
    118,310.15/163,268.39 = 75,868.85/x
  3. Step 3: Cross multiply
    118,310.15x = 163,268.39 × 75,868.85
  4. Step 4: Simplify right side
    118,310.15x = 12,386,985,588.49
  5. Step 5: Solve for x
    x = 12,386,985,588.49/118,310.15
  6. Step 6: Final answer
    x = 104,699.26

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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.