Home / 221,090.04-305,017.65-136,059.48

Finding the Fourth Proportional to 221,090.04, 305,017.65 and 136,059.48

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Solution

The fourth proportional to 221,090.04, 305,017.65 and 136,059.48 is: 187,708.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,090.04 : 305,017.65 = 136,059.48 : x
  2. Step 2: Convert to fraction form
    221,090.04/305,017.65 = 136,059.48/x
  3. Step 3: Cross multiply
    221,090.04x = 305,017.65 × 136,059.48
  4. Step 4: Simplify right side
    221,090.04x = 41,500,542,849.82
  5. Step 5: Solve for x
    x = 41,500,542,849.82/221,090.04
  6. Step 6: Final answer
    x = 187,708.79

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1.5x scale

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.