Home / 189,130.86-260,998.88-103,089.83

Finding the Fourth Proportional to 189,130.86, 260,998.88 and 103,089.83

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Solution

The fourth proportional to 189,130.86, 260,998.88 and 103,089.83 is: 142,263.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,130.86 : 260,998.88 = 103,089.83 : x
  2. Step 2: Convert to fraction form
    189,130.86/260,998.88 = 103,089.83/x
  3. Step 3: Cross multiply
    189,130.86x = 260,998.88 × 103,089.83
  4. Step 4: Simplify right side
    189,130.86x = 26,906,328,348.95
  5. Step 5: Solve for x
    x = 26,906,328,348.95/189,130.86
  6. Step 6: Final answer
    x = 142,263.03

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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.