Home / 203,776.79-281,206.50-122,151.15

Finding the Fourth Proportional to 203,776.79, 281,206.50 and 122,151.15

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Solution

The fourth proportional to 203,776.79, 281,206.50 and 122,151.15 is: 168,565.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,776.79 : 281,206.50 = 122,151.15 : x
  2. Step 2: Convert to fraction form
    203,776.79/281,206.50 = 122,151.15/x
  3. Step 3: Cross multiply
    203,776.79x = 281,206.50 × 122,151.15
  4. Step 4: Simplify right side
    203,776.79x = 34,349,696,904.41
  5. Step 5: Solve for x
    x = 34,349,696,904.41/203,776.79
  6. Step 6: Final answer
    x = 168,565.31

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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.