Home / 135,875.02-203,855.58-105,991.72

Finding the Fourth Proportional to 135,875.02, 203,855.58 and 105,991.72

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Solution

The fourth proportional to 135,875.02, 203,855.58 and 105,991.72 is: 159,021.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,875.02 : 203,855.58 = 105,991.72 : x
  2. Step 2: Convert to fraction form
    135,875.02/203,855.58 = 105,991.72/x
  3. Step 3: Cross multiply
    135,875.02x = 203,855.58 × 105,991.72
  4. Step 4: Simplify right side
    135,875.02x = 21,607,002,536.52
  5. Step 5: Solve for x
    x = 21,607,002,536.52/135,875.02
  6. Step 6: Final answer
    x = 159,021.15

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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.