Home / 133,731.20-200,434.80-77,463.20

Finding the Fourth Proportional to 133,731.20, 200,434.80 and 77,463.20

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Solution

The fourth proportional to 133,731.20, 200,434.80 and 77,463.20 is: 116,100.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,731.20 : 200,434.80 = 77,463.20 : x
  2. Step 2: Convert to fraction form
    133,731.20/200,434.80 = 77,463.20/x
  3. Step 3: Cross multiply
    133,731.20x = 200,434.80 × 77,463.20
  4. Step 4: Simplify right side
    133,731.20x = 15,526,320,999.36
  5. Step 5: Solve for x
    x = 15,526,320,999.36/133,731.20
  6. Step 6: Final answer
    x = 116,100.96

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1.5x scale

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.