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Finding the Fourth Proportional to 134,135.80, 201,203.70 and 45,392.20

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Solution

The fourth proportional to 134,135.80, 201,203.70 and 45,392.20 is: 68,088.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,135.80 : 201,203.70 = 45,392.20 : x
  2. Step 2: Convert to fraction form
    134,135.80/201,203.70 = 45,392.20/x
  3. Step 3: Cross multiply
    134,135.80x = 201,203.70 × 45,392.20
  4. Step 4: Simplify right side
    134,135.80x = 9,133,078,591.14
  5. Step 5: Solve for x
    x = 9,133,078,591.14/134,135.80
  6. Step 6: Final answer
    x = 68,088.30

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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.