Home / 112,208.77-154,795.92-66,861.31

Finding the Fourth Proportional to 112,208.77, 154,795.92 and 66,861.31

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Solution

The fourth proportional to 112,208.77, 154,795.92 and 66,861.31 is: 92,237.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,208.77 : 154,795.92 = 66,861.31 : x
  2. Step 2: Convert to fraction form
    112,208.77/154,795.92 = 66,861.31/x
  3. Step 3: Cross multiply
    112,208.77x = 154,795.92 × 66,861.31
  4. Step 4: Simplify right side
    112,208.77x = 10,349,857,993.86
  5. Step 5: Solve for x
    x = 10,349,857,993.86/112,208.77
  6. Step 6: Final answer
    x = 92,237.51

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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.