Home / 221,100.17-305,126.46-125,623.04

Finding the Fourth Proportional to 221,100.17, 305,126.46 and 125,623.04

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Solution

The fourth proportional to 221,100.17, 305,126.46 and 125,623.04 is: 173,364.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,100.17 : 305,126.46 = 125,623.04 : x
  2. Step 2: Convert to fraction form
    221,100.17/305,126.46 = 125,623.04/x
  3. Step 3: Cross multiply
    221,100.17x = 305,126.46 × 125,623.04
  4. Step 4: Simplify right side
    221,100.17x = 38,330,911,964.01
  5. Step 5: Solve for x
    x = 38,330,911,964.01/221,100.17
  6. Step 6: Final answer
    x = 173,364.47

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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.