Home / 135,800.80-203,737.65-121,111.45

Finding the Fourth Proportional to 135,800.80, 203,737.65 and 121,111.45

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Solution

The fourth proportional to 135,800.80, 203,737.65 and 121,111.45 is: 181,699.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,800.80 : 203,737.65 = 121,111.45 : x
  2. Step 2: Convert to fraction form
    135,800.80/203,737.65 = 121,111.45/x
  3. Step 3: Cross multiply
    135,800.80x = 203,737.65 × 121,111.45
  4. Step 4: Simplify right side
    135,800.80x = 24,674,962,211.09
  5. Step 5: Solve for x
    x = 24,674,962,211.09/135,800.80
  6. Step 6: Final answer
    x = 181,699.68

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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.