Home / 140,878.08-194,410.59-77,215.73

Finding the Fourth Proportional to 140,878.08, 194,410.59 and 77,215.73

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Solution

The fourth proportional to 140,878.08, 194,410.59 and 77,215.73 is: 106,557.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,878.08 : 194,410.59 = 77,215.73 : x
  2. Step 2: Convert to fraction form
    140,878.08/194,410.59 = 77,215.73/x
  3. Step 3: Cross multiply
    140,878.08x = 194,410.59 × 77,215.73
  4. Step 4: Simplify right side
    140,878.08x = 15,011,554,654.53
  5. Step 5: Solve for x
    x = 15,011,554,654.53/140,878.08
  6. Step 6: Final answer
    x = 106,557.06

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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.