Home / 135,905.28-203,818.56-47,155.20

Finding the Fourth Proportional to 135,905.28, 203,818.56 and 47,155.20

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Solution

The fourth proportional to 135,905.28, 203,818.56 and 47,155.20 is: 70,719.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,905.28 : 203,818.56 = 47,155.20 : x
  2. Step 2: Convert to fraction form
    135,905.28/203,818.56 = 47,155.20/x
  3. Step 3: Cross multiply
    135,905.28x = 203,818.56 × 47,155.20
  4. Step 4: Simplify right side
    135,905.28x = 9,611,104,960.51
  5. Step 5: Solve for x
    x = 9,611,104,960.51/135,905.28
  6. Step 6: Final answer
    x = 70,719.14

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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.