Home / 157,422.60-236,717.10-131,761.80

Finding the Fourth Proportional to 157,422.60, 236,717.10 and 131,761.80

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Solution

The fourth proportional to 157,422.60, 236,717.10 and 131,761.80 is: 198,130.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,422.60 : 236,717.10 = 131,761.80 : x
  2. Step 2: Convert to fraction form
    157,422.60/236,717.10 = 131,761.80/x
  3. Step 3: Cross multiply
    157,422.60x = 236,717.10 × 131,761.80
  4. Step 4: Simplify right side
    157,422.60x = 31,190,271,186.78
  5. Step 5: Solve for x
    x = 31,190,271,186.78/157,422.60
  6. Step 6: Final answer
    x = 198,130.84

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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.