Home / 561,705.40-842,532.18-140,971.96

Finding the Fourth Proportional to 561,705.40, 842,532.18 and 140,971.96

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Solution

The fourth proportional to 561,705.40, 842,532.18 and 140,971.96 is: 211,451.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,705.40 : 842,532.18 = 140,971.96 : x
  2. Step 2: Convert to fraction form
    561,705.40/842,532.18 = 140,971.96/x
  3. Step 3: Cross multiply
    561,705.40x = 842,532.18 × 140,971.96
  4. Step 4: Simplify right side
    561,705.40x = 118,773,412,777.67
  5. Step 5: Solve for x
    x = 118,773,412,777.67/561,705.40
  6. Step 6: Final answer
    x = 211,451.43

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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.