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Finding the Fourth Proportional to 157,241.60, 235,646.40 and 100,908.80

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Solution

The fourth proportional to 157,241.60, 235,646.40 and 100,908.80 is: 151,224.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,241.60 : 235,646.40 = 100,908.80 : x
  2. Step 2: Convert to fraction form
    157,241.60/235,646.40 = 100,908.80/x
  3. Step 3: Cross multiply
    157,241.60x = 235,646.40 × 100,908.80
  4. Step 4: Simplify right side
    157,241.60x = 23,778,795,448.32
  5. Step 5: Solve for x
    x = 23,778,795,448.32/157,241.60
  6. Step 6: Final answer
    x = 151,224.58

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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.