Home / 138,595.30-191,261.98-74,933.56

Finding the Fourth Proportional to 138,595.30, 191,261.98 and 74,933.56

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Solution

The fourth proportional to 138,595.30, 191,261.98 and 74,933.56 is: 103,408.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,595.30 : 191,261.98 = 74,933.56 : x
  2. Step 2: Convert to fraction form
    138,595.30/191,261.98 = 74,933.56/x
  3. Step 3: Cross multiply
    138,595.30x = 191,261.98 × 74,933.56
  4. Step 4: Simplify right side
    138,595.30x = 14,331,941,054.05
  5. Step 5: Solve for x
    x = 14,331,941,054.05/138,595.30
  6. Step 6: Final answer
    x = 103,408.56

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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.