Home / 189,667.40-284,542.20-100,908.08

Finding the Fourth Proportional to 189,667.40, 284,542.20 and 100,908.08

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Solution

The fourth proportional to 189,667.40, 284,542.20 and 100,908.08 is: 151,383.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,667.40 : 284,542.20 = 100,908.08 : x
  2. Step 2: Convert to fraction form
    189,667.40/284,542.20 = 100,908.08/x
  3. Step 3: Cross multiply
    189,667.40x = 284,542.20 × 100,908.08
  4. Step 4: Simplify right side
    189,667.40x = 28,712,607,080.98
  5. Step 5: Solve for x
    x = 28,712,607,080.98/189,667.40
  6. Step 6: Final answer
    x = 151,383.99

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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.