Home / 260,069.86-389,994.02-102,187.57

Finding the Fourth Proportional to 260,069.86, 389,994.02 and 102,187.57

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Solution

The fourth proportional to 260,069.86, 389,994.02 and 102,187.57 is: 153,237.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,069.86 : 389,994.02 = 102,187.57 : x
  2. Step 2: Convert to fraction form
    260,069.86/389,994.02 = 102,187.57/x
  3. Step 3: Cross multiply
    260,069.86x = 389,994.02 × 102,187.57
  4. Step 4: Simplify right side
    260,069.86x = 39,852,539,268.36
  5. Step 5: Solve for x
    x = 39,852,539,268.36/260,069.86
  6. Step 6: Final answer
    x = 153,237.82

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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.