Home / 127,586.72-191,161.37-90,079.67

Finding the Fourth Proportional to 127,586.72, 191,161.37 and 90,079.67

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Solution

The fourth proportional to 127,586.72, 191,161.37 and 90,079.67 is: 134,965.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,586.72 : 191,161.37 = 90,079.67 : x
  2. Step 2: Convert to fraction form
    127,586.72/191,161.37 = 90,079.67/x
  3. Step 3: Cross multiply
    127,586.72x = 191,161.37 × 90,079.67
  4. Step 4: Simplify right side
    127,586.72x = 17,219,753,126.35
  5. Step 5: Solve for x
    x = 17,219,753,126.35/127,586.72
  6. Step 6: Final answer
    x = 134,965.09

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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.