Home / 203,913.10-305,869.65-133,054.30

Finding the Fourth Proportional to 203,913.10, 305,869.65 and 133,054.30

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Solution

The fourth proportional to 203,913.10, 305,869.65 and 133,054.30 is: 199,581.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,913.10 : 305,869.65 = 133,054.30 : x
  2. Step 2: Convert to fraction form
    203,913.10/305,869.65 = 133,054.30/x
  3. Step 3: Cross multiply
    203,913.10x = 305,869.65 × 133,054.30
  4. Step 4: Simplify right side
    203,913.10x = 40,697,272,172.00
  5. Step 5: Solve for x
    x = 40,697,272,172.00/203,913.10
  6. Step 6: Final answer
    x = 199,581.45

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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.