Home / 149,316.96-206,051.49-81,332.85

Finding the Fourth Proportional to 149,316.96, 206,051.49 and 81,332.85

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Solution

The fourth proportional to 149,316.96, 206,051.49 and 81,332.85 is: 112,236.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,316.96 : 206,051.49 = 81,332.85 : x
  2. Step 2: Convert to fraction form
    149,316.96/206,051.49 = 81,332.85/x
  3. Step 3: Cross multiply
    149,316.96x = 206,051.49 × 81,332.85
  4. Step 4: Simplify right side
    149,316.96x = 16,758,754,928.45
  5. Step 5: Solve for x
    x = 16,758,754,928.45/149,316.96
  6. Step 6: Final answer
    x = 112,236.11

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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.