Home / 135,738.58-187,320.24-74,484.34

Finding the Fourth Proportional to 135,738.58, 187,320.24 and 74,484.34

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Solution

The fourth proportional to 135,738.58, 187,320.24 and 74,484.34 is: 102,788.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,738.58 : 187,320.24 = 74,484.34 : x
  2. Step 2: Convert to fraction form
    135,738.58/187,320.24 = 74,484.34/x
  3. Step 3: Cross multiply
    135,738.58x = 187,320.24 × 74,484.34
  4. Step 4: Simplify right side
    135,738.58x = 13,952,424,445.04
  5. Step 5: Solve for x
    x = 13,952,424,445.04/135,738.58
  6. Step 6: Final answer
    x = 102,788.94

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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.