Home / 136,907.54-205,380.77-42,145.62

Finding the Fourth Proportional to 136,907.54, 205,380.77 and 42,145.62

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Solution

The fourth proportional to 136,907.54, 205,380.77 and 42,145.62 is: 63,224.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,907.54 : 205,380.77 = 42,145.62 : x
  2. Step 2: Convert to fraction form
    136,907.54/205,380.77 = 42,145.62/x
  3. Step 3: Cross multiply
    136,907.54x = 205,380.77 × 42,145.62
  4. Step 4: Simplify right side
    136,907.54x = 8,655,899,677.00
  5. Step 5: Solve for x
    x = 8,655,899,677.00/136,907.54
  6. Step 6: Final answer
    x = 63,224.42

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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.