Home / 104,268.60-143,890.86-56,521.80

Finding the Fourth Proportional to 104,268.60, 143,890.86 and 56,521.80

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Solution

The fourth proportional to 104,268.60, 143,890.86 and 56,521.80 is: 78,000.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,268.60 : 143,890.86 = 56,521.80 : x
  2. Step 2: Convert to fraction form
    104,268.60/143,890.86 = 56,521.80/x
  3. Step 3: Cross multiply
    104,268.60x = 143,890.86 × 56,521.80
  4. Step 4: Simplify right side
    104,268.60x = 8,132,970,410.75
  5. Step 5: Solve for x
    x = 8,132,970,410.75/104,268.60
  6. Step 6: Final answer
    x = 78,000.19

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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.