Home / 102,664.20-153,923.40-39,459.90

Finding the Fourth Proportional to 102,664.20, 153,923.40 and 39,459.90

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Solution

The fourth proportional to 102,664.20, 153,923.40 and 39,459.90 is: 59,161.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,664.20 : 153,923.40 = 39,459.90 : x
  2. Step 2: Convert to fraction form
    102,664.20/153,923.40 = 39,459.90/x
  3. Step 3: Cross multiply
    102,664.20x = 153,923.40 × 39,459.90
  4. Step 4: Simplify right side
    102,664.20x = 6,073,801,971.66
  5. Step 5: Solve for x
    x = 6,073,801,971.66/102,664.20
  6. Step 6: Final answer
    x = 59,161.83

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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.