Home / 189,744.70-284,945.10-101,171.20

Finding the Fourth Proportional to 189,744.70, 284,945.10 and 101,171.20

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Solution

The fourth proportional to 189,744.70, 284,945.10 and 101,171.20 is: 151,931.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,744.70 : 284,945.10 = 101,171.20 : x
  2. Step 2: Convert to fraction form
    189,744.70/284,945.10 = 101,171.20/x
  3. Step 3: Cross multiply
    189,744.70x = 284,945.10 × 101,171.20
  4. Step 4: Simplify right side
    189,744.70x = 28,828,237,701.12
  5. Step 5: Solve for x
    x = 28,828,237,701.12/189,744.70
  6. Step 6: Final answer
    x = 151,931.72

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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.