Home / 157,839.40-236,748.30-51,221.80

Finding the Fourth Proportional to 157,839.40, 236,748.30 and 51,221.80

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Solution

The fourth proportional to 157,839.40, 236,748.30 and 51,221.80 is: 76,829.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,839.40 : 236,748.30 = 51,221.80 : x
  2. Step 2: Convert to fraction form
    157,839.40/236,748.30 = 51,221.80/x
  3. Step 3: Cross multiply
    157,839.40x = 236,748.30 × 51,221.80
  4. Step 4: Simplify right side
    157,839.40x = 12,126,674,072.94
  5. Step 5: Solve for x
    x = 12,126,674,072.94/157,839.40
  6. Step 6: Final answer
    x = 76,829.20

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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.