Home / 226,790.40-312,970.32-126,188.40

Finding the Fourth Proportional to 226,790.40, 312,970.32 and 126,188.40

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Solution

The fourth proportional to 226,790.40, 312,970.32 and 126,188.40 is: 174,139.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,790.40 : 312,970.32 = 126,188.40 : x
  2. Step 2: Convert to fraction form
    226,790.40/312,970.32 = 126,188.40/x
  3. Step 3: Cross multiply
    226,790.40x = 312,970.32 × 126,188.40
  4. Step 4: Simplify right side
    226,790.40x = 39,493,223,928.29
  5. Step 5: Solve for x
    x = 39,493,223,928.29/226,790.40
  6. Step 6: Final answer
    x = 174,139.75

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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.