Home / 136,860.42-188,857.96-75,603.90

Finding the Fourth Proportional to 136,860.42, 188,857.96 and 75,603.90

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Solution

The fourth proportional to 136,860.42, 188,857.96 and 75,603.90 is: 104,328.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,860.42 : 188,857.96 = 75,603.90 : x
  2. Step 2: Convert to fraction form
    136,860.42/188,857.96 = 75,603.90/x
  3. Step 3: Cross multiply
    136,860.42x = 188,857.96 × 75,603.90
  4. Step 4: Simplify right side
    136,860.42x = 14,278,398,322.04
  5. Step 5: Solve for x
    x = 14,278,398,322.04/136,860.42
  6. Step 6: Final answer
    x = 104,328.18

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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.