Home / 221,074.84-305,037.66-130,426.12

Finding the Fourth Proportional to 221,074.84, 305,037.66 and 130,426.12

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Solution

The fourth proportional to 221,074.84, 305,037.66 and 130,426.12 is: 179,961.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,074.84 : 305,037.66 = 130,426.12 : x
  2. Step 2: Convert to fraction form
    221,074.84/305,037.66 = 130,426.12/x
  3. Step 3: Cross multiply
    221,074.84x = 305,037.66 × 130,426.12
  4. Step 4: Simplify right side
    221,074.84x = 39,784,878,447.68
  5. Step 5: Solve for x
    x = 39,784,878,447.68/221,074.84
  6. Step 6: Final answer
    x = 179,961.13

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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.