Home / 138,449.53-191,060.44-74,787.35

Finding the Fourth Proportional to 138,449.53, 191,060.44 and 74,787.35

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Solution

The fourth proportional to 138,449.53, 191,060.44 and 74,787.35 is: 103,206.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,449.53 : 191,060.44 = 74,787.35 : x
  2. Step 2: Convert to fraction form
    138,449.53/191,060.44 = 74,787.35/x
  3. Step 3: Cross multiply
    138,449.53x = 191,060.44 × 74,787.35
  4. Step 4: Simplify right side
    138,449.53x = 14,288,902,855.16
  5. Step 5: Solve for x
    x = 14,288,902,855.16/138,449.53
  6. Step 6: Final answer
    x = 103,206.58

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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.