Home / 104,720.13-156,970.83-45,539.91

Finding the Fourth Proportional to 104,720.13, 156,970.83 and 45,539.91

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Solution

The fourth proportional to 104,720.13, 156,970.83 and 45,539.91 is: 68,262.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,720.13 : 156,970.83 = 45,539.91 : x
  2. Step 2: Convert to fraction form
    104,720.13/156,970.83 = 45,539.91/x
  3. Step 3: Cross multiply
    104,720.13x = 156,970.83 × 45,539.91
  4. Step 4: Simplify right side
    104,720.13x = 7,148,437,470.83
  5. Step 5: Solve for x
    x = 7,148,437,470.83/104,720.13
  6. Step 6: Final answer
    x = 68,262.31

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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.