Home / 221,108.04-305,130.12-125,619.96

Finding the Fourth Proportional to 221,108.04, 305,130.12 and 125,619.96

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Solution

The fourth proportional to 221,108.04, 305,130.12 and 125,619.96 is: 173,356.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,108.04 : 305,130.12 = 125,619.96 : x
  2. Step 2: Convert to fraction form
    221,108.04/305,130.12 = 125,619.96/x
  3. Step 3: Cross multiply
    221,108.04x = 305,130.12 × 125,619.96
  4. Step 4: Simplify right side
    221,108.04x = 38,330,433,469.20
  5. Step 5: Solve for x
    x = 38,330,433,469.20/221,108.04
  6. Step 6: Final answer
    x = 173,356.13

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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.