Home / 127,485.46-191,141.91-71,364.32

Finding the Fourth Proportional to 127,485.46, 191,141.91 and 71,364.32

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Solution

The fourth proportional to 127,485.46, 191,141.91 and 71,364.32 is: 106,998.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,485.46 : 191,141.91 = 71,364.32 : x
  2. Step 2: Convert to fraction form
    127,485.46/191,141.91 = 71,364.32/x
  3. Step 3: Cross multiply
    127,485.46x = 191,141.91 × 71,364.32
  4. Step 4: Simplify right side
    127,485.46x = 13,640,711,474.94
  5. Step 5: Solve for x
    x = 13,640,711,474.94/127,485.46
  6. Step 6: Final answer
    x = 106,998.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.