Home / 189,901.46-284,992.16-90,061.94

Finding the Fourth Proportional to 189,901.46, 284,992.16 and 90,061.94

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Solution

The fourth proportional to 189,901.46, 284,992.16 and 90,061.94 is: 135,159.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,901.46 : 284,992.16 = 90,061.94 : x
  2. Step 2: Convert to fraction form
    189,901.46/284,992.16 = 90,061.94/x
  3. Step 3: Cross multiply
    189,901.46x = 284,992.16 × 90,061.94
  4. Step 4: Simplify right side
    189,901.46x = 25,666,947,076.56
  5. Step 5: Solve for x
    x = 25,666,947,076.56/189,901.46
  6. Step 6: Final answer
    x = 135,159.29

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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.