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Finding the Fourth Proportional to 157,779.60, 236,208.60 and 141,190.80

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Solution

The fourth proportional to 157,779.60, 236,208.60 and 141,190.80 is: 211,373.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,779.60 : 236,208.60 = 141,190.80 : x
  2. Step 2: Convert to fraction form
    157,779.60/236,208.60 = 141,190.80/x
  3. Step 3: Cross multiply
    157,779.60x = 236,208.60 × 141,190.80
  4. Step 4: Simplify right side
    157,779.60x = 33,350,481,200.88
  5. Step 5: Solve for x
    x = 33,350,481,200.88/157,779.60
  6. Step 6: Final answer
    x = 211,373.85

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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.