Home / 133,235.94-183,864.90-78,807.60

Finding the Fourth Proportional to 133,235.94, 183,864.90 and 78,807.60

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Solution

The fourth proportional to 133,235.94, 183,864.90 and 78,807.60 is: 108,754.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,235.94 : 183,864.90 = 78,807.60 : x
  2. Step 2: Convert to fraction form
    133,235.94/183,864.90 = 78,807.60/x
  3. Step 3: Cross multiply
    133,235.94x = 183,864.90 × 78,807.60
  4. Step 4: Simplify right side
    133,235.94x = 14,489,951,493.24
  5. Step 5: Solve for x
    x = 14,489,951,493.24/133,235.94
  6. Step 6: Final answer
    x = 108,754.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.