Home / 107,590.20-161,363.70-51,430.20

Finding the Fourth Proportional to 107,590.20, 161,363.70 and 51,430.20

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Solution

The fourth proportional to 107,590.20, 161,363.70 and 51,430.20 is: 77,134.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,590.20 : 161,363.70 = 51,430.20 : x
  2. Step 2: Convert to fraction form
    107,590.20/161,363.70 = 51,430.20/x
  3. Step 3: Cross multiply
    107,590.20x = 161,363.70 × 51,430.20
  4. Step 4: Simplify right side
    107,590.20x = 8,298,967,363.74
  5. Step 5: Solve for x
    x = 8,298,967,363.74/107,590.20
  6. Step 6: Final answer
    x = 77,134.97

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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.