Home / 145,101.30-217,661.70-51,581.94

Finding the Fourth Proportional to 145,101.30, 217,661.70 and 51,581.94

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Solution

The fourth proportional to 145,101.30, 217,661.70 and 51,581.94 is: 77,376.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,101.30 : 217,661.70 = 51,581.94 : x
  2. Step 2: Convert to fraction form
    145,101.30/217,661.70 = 51,581.94/x
  3. Step 3: Cross multiply
    145,101.30x = 217,661.70 × 51,581.94
  4. Step 4: Simplify right side
    145,101.30x = 11,227,412,749.70
  5. Step 5: Solve for x
    x = 11,227,412,749.70/145,101.30
  6. Step 6: Final answer
    x = 77,376.38

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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.