Home / 119,243.48-164,520.09-71,479.40

Finding the Fourth Proportional to 119,243.48, 164,520.09 and 71,479.40

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Solution

The fourth proportional to 119,243.48, 164,520.09 and 71,479.40 is: 98,620.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,243.48 : 164,520.09 = 71,479.40 : x
  2. Step 2: Convert to fraction form
    119,243.48/164,520.09 = 71,479.40/x
  3. Step 3: Cross multiply
    119,243.48x = 164,520.09 × 71,479.40
  4. Step 4: Simplify right side
    119,243.48x = 11,759,796,498.55
  5. Step 5: Solve for x
    x = 11,759,796,498.55/119,243.48
  6. Step 6: Final answer
    x = 98,620.04

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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.