Home / 105,115.41-157,579.34-38,539.98

Finding the Fourth Proportional to 105,115.41, 157,579.34 and 38,539.98

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Solution

The fourth proportional to 105,115.41, 157,579.34 and 38,539.98 is: 57,775.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,115.41 : 157,579.34 = 38,539.98 : x
  2. Step 2: Convert to fraction form
    105,115.41/157,579.34 = 38,539.98/x
  3. Step 3: Cross multiply
    105,115.41x = 157,579.34 × 38,539.98
  4. Step 4: Simplify right side
    105,115.41x = 6,073,104,419.31
  5. Step 5: Solve for x
    x = 6,073,104,419.31/105,115.41
  6. Step 6: Final answer
    x = 57,775.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.