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Finding the Fourth Proportional to 157,401.60, 236,685.60 and 131,740.80

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Solution

The fourth proportional to 157,401.60, 236,685.60 and 131,740.80 is: 198,099.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,401.60 : 236,685.60 = 131,740.80 : x
  2. Step 2: Convert to fraction form
    157,401.60/236,685.60 = 131,740.80/x
  3. Step 3: Cross multiply
    157,401.60x = 236,685.60 × 131,740.80
  4. Step 4: Simplify right side
    157,401.60x = 31,181,150,292.48
  5. Step 5: Solve for x
    x = 31,181,150,292.48/157,401.60
  6. Step 6: Final answer
    x = 198,099.32

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1.5x scale

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.