Home / 221,206.42-305,275.53-124,440.58

Finding the Fourth Proportional to 221,206.42, 305,275.53 and 124,440.58

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Solution

The fourth proportional to 221,206.42, 305,275.53 and 124,440.58 is: 171,734.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,206.42 : 305,275.53 = 124,440.58 : x
  2. Step 2: Convert to fraction form
    221,206.42/305,275.53 = 124,440.58/x
  3. Step 3: Cross multiply
    221,206.42x = 305,275.53 × 124,440.58
  4. Step 4: Simplify right side
    221,206.42x = 37,988,664,013.01
  5. Step 5: Solve for x
    x = 37,988,664,013.01/221,206.42
  6. Step 6: Final answer
    x = 171,734.00

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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.