Home / 203,648.72-281,036.80-113,005.04

Finding the Fourth Proportional to 203,648.72, 281,036.80 and 113,005.04

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Solution

The fourth proportional to 203,648.72, 281,036.80 and 113,005.04 is: 155,947.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,648.72 : 281,036.80 = 113,005.04 : x
  2. Step 2: Convert to fraction form
    203,648.72/281,036.80 = 113,005.04/x
  3. Step 3: Cross multiply
    203,648.72x = 281,036.80 × 113,005.04
  4. Step 4: Simplify right side
    203,648.72x = 31,758,574,825.47
  5. Step 5: Solve for x
    x = 31,758,574,825.47/203,648.72
  6. Step 6: Final answer
    x = 155,947.82

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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.