Home / 106,139.77-146,483.22-79,235.56

Finding the Fourth Proportional to 106,139.77, 146,483.22 and 79,235.56

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Solution

The fourth proportional to 106,139.77, 146,483.22 and 79,235.56 is: 109,352.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,139.77 : 146,483.22 = 79,235.56 : x
  2. Step 2: Convert to fraction form
    106,139.77/146,483.22 = 79,235.56/x
  3. Step 3: Cross multiply
    106,139.77x = 146,483.22 × 79,235.56
  4. Step 4: Simplify right side
    106,139.77x = 11,606,679,967.30
  5. Step 5: Solve for x
    x = 11,606,679,967.30/106,139.77
  6. Step 6: Final answer
    x = 109,352.79

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1.5x scale

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.