Home / 189,905.94-284,897.25-84,724.92

Finding the Fourth Proportional to 189,905.94, 284,897.25 and 84,724.92

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Solution

The fourth proportional to 189,905.94, 284,897.25 and 84,724.92 is: 127,104.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,905.94 : 284,897.25 = 84,724.92 : x
  2. Step 2: Convert to fraction form
    189,905.94/284,897.25 = 84,724.92/x
  3. Step 3: Cross multiply
    189,905.94x = 284,897.25 × 84,724.92
  4. Step 4: Simplify right side
    189,905.94x = 24,137,896,714.47
  5. Step 5: Solve for x
    x = 24,137,896,714.47/189,905.94
  6. Step 6: Final answer
    x = 127,104.49

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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.