Home / 104,687.06-156,970.91-71,447.36

Finding the Fourth Proportional to 104,687.06, 156,970.91 and 71,447.36

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Solution

The fourth proportional to 104,687.06, 156,970.91 and 71,447.36 is: 107,130.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,687.06 : 156,970.91 = 71,447.36 : x
  2. Step 2: Convert to fraction form
    104,687.06/156,970.91 = 71,447.36/x
  3. Step 3: Cross multiply
    104,687.06x = 156,970.91 × 71,447.36
  4. Step 4: Simplify right side
    104,687.06x = 11,215,156,510.06
  5. Step 5: Solve for x
    x = 11,215,156,510.06/104,687.06
  6. Step 6: Final answer
    x = 107,130.31

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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.