Home / 136,954.79-205,441.46-42,179.12

Finding the Fourth Proportional to 136,954.79, 205,441.46 and 42,179.12

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Solution

The fourth proportional to 136,954.79, 205,441.46 and 42,179.12 is: 63,271.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,954.79 : 205,441.46 = 42,179.12 : x
  2. Step 2: Convert to fraction form
    136,954.79/205,441.46 = 42,179.12/x
  3. Step 3: Cross multiply
    136,954.79x = 205,441.46 × 42,179.12
  4. Step 4: Simplify right side
    136,954.79x = 8,665,338,756.21
  5. Step 5: Solve for x
    x = 8,665,338,756.21/136,954.79
  6. Step 6: Final answer
    x = 63,271.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.