Home / 105,929.57-146,277.70-79,025.36

Finding the Fourth Proportional to 105,929.57, 146,277.70 and 79,025.36

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Solution

The fourth proportional to 105,929.57, 146,277.70 and 79,025.36 is: 109,125.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,929.57 : 146,277.70 = 79,025.36 : x
  2. Step 2: Convert to fraction form
    105,929.57/146,277.70 = 79,025.36/x
  3. Step 3: Cross multiply
    105,929.57x = 146,277.70 × 79,025.36
  4. Step 4: Simplify right side
    105,929.57x = 11,559,646,973.52
  5. Step 5: Solve for x
    x = 11,559,646,973.52/105,929.57
  6. Step 6: Final answer
    x = 109,125.78

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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.