Home / 105,928.50-158,892.75-39,385.38

Finding the Fourth Proportional to 105,928.50, 158,892.75 and 39,385.38

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Solution

The fourth proportional to 105,928.50, 158,892.75 and 39,385.38 is: 59,078.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,928.50 : 158,892.75 = 39,385.38 : x
  2. Step 2: Convert to fraction form
    105,928.50/158,892.75 = 39,385.38/x
  3. Step 3: Cross multiply
    105,928.50x = 158,892.75 × 39,385.38
  4. Step 4: Simplify right side
    105,928.50x = 6,258,051,338.00
  5. Step 5: Solve for x
    x = 6,258,051,338.00/105,928.50
  6. Step 6: Final answer
    x = 59,078.07

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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.